diff --git a/make/jvm/pom.xml b/make/jvm/pom.xml
index 67b1d63b..09a32558 100644
--- a/make/jvm/pom.xml
+++ b/make/jvm/pom.xml
@@ -28,7 +28,7 @@ SOFTWARE.
   <artifactId>jvm</artifactId>
   <version>1.0-SNAPSHOT</version>
   <properties>
-    <eo.version>0.46.0</eo.version>
+    <eo.version>0.48.1</eo.version>
     <stack-size>32M</stack-size>
     <heap-size>2G</heap-size>
   </properties>
diff --git a/objects/org/eolang/as-phi.eo b/objects/org/eolang/as-phi.eo
index fba9efa8..9d320c71 100644
--- a/objects/org/eolang/as-phi.eo
+++ b/objects/org/eolang/as-phi.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # Turns an object into a phi-term printable to console.
 #
diff --git a/objects/org/eolang/bytes.eo b/objects/org/eolang/bytes.eo
index 93eebca3..affe43ce 100644
--- a/objects/org/eolang/bytes.eo
+++ b/objects/org/eolang/bytes.eo
@@ -24,9 +24,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # The object encapsulates a chain of bytes, adding a few
 # convenient operations to it. Objects like `int`, `string`,
@@ -35,7 +35,6 @@
   data > @
   $ > as-bytes
   $.eq 01- > as-bool
-  string $ > as-string
 
   # Turn this chain of eight bytes into a number.
   # If there are less or more than eight bytes, there will
diff --git a/objects/org/eolang/cti.eo b/objects/org/eolang/cti.eo
index 371cfa94..b90ff86a 100644
--- a/objects/org/eolang/cti.eo
+++ b/objects/org/eolang/cti.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # Compile Time Instruction (CTI).
 #
diff --git a/objects/org/eolang/dataized.eo b/objects/org/eolang/dataized.eo
index aba83df3..9c9266b9 100644
--- a/objects/org/eolang/dataized.eo
+++ b/objects/org/eolang/dataized.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # The object dataizes `target`, makes new instance of `bytes` from given data and behaves as result
 # `bytes`.
diff --git a/objects/org/eolang/error.eo b/objects/org/eolang/error.eo
index 9b11f4e9..ca77e306 100644
--- a/objects/org/eolang/error.eo
+++ b/objects/org/eolang/error.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # This object must be used in order to terminate the program
 # due to an error. Just make a copy of it with any encapsulated object.
diff --git a/objects/org/eolang/false.eo b/objects/org/eolang/false.eo
index 4e7ae600..8d67adea 100644
--- a/objects/org/eolang/false.eo
+++ b/objects/org/eolang/false.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # The object is a FALSE boolean state.
 [] > false
diff --git a/objects/org/eolang/fs/dir.eo b/objects/org/eolang/fs/dir.eo
index c7c460e9..01f065f8 100644
--- a/objects/org/eolang/fs/dir.eo
+++ b/objects/org/eolang/fs/dir.eo
@@ -24,9 +24,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.fs
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # Directory in the file system.
 # Apparently every directory is a file.
@@ -90,7 +90,8 @@
   [] > tmpfile
     if. > @
       ^.exists
-      QQ.fs.file touch.as-bytes.as-string
+      QQ.fs.file
+        string touch.as-bytes
       error
         sprintf
           "Directory %s does not exist, can't create temporary file"
diff --git a/objects/org/eolang/fs/file.eo b/objects/org/eolang/fs/file.eo
index 1762739e..13493c98 100644
--- a/objects/org/eolang/fs/file.eo
+++ b/objects/org/eolang/fs/file.eo
@@ -24,9 +24,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.fs
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # A file on the filesystem.
 [path] > file
@@ -78,7 +78,8 @@
 
   # Move current file to `target`, making and returning a new `file` from it.
   [target] > moved
-    QQ.fs.file move.as-bytes.as-string > @
+    QQ.fs.file > @
+      string move.as-bytes
 
     # Tries to move file from `^.path` to `target`
     # and returns path of moved file as `string`.
diff --git a/objects/org/eolang/fs/path.eo b/objects/org/eolang/fs/path.eo
index b3cac994..0004be6e 100644
--- a/objects/org/eolang/fs/path.eo
+++ b/objects/org/eolang/fs/path.eo
@@ -27,7 +27,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.fs
-+version 0.46.0
++version 0.48.1
 
 # A `path` represents a path that is hierarchical and composed of a sequence of
 # directory and file name elements separated by a special separator or delimiter.
@@ -43,7 +43,7 @@
   # Utility object that joins given `tuple` of paths with current OS separator
   # and normalizes result path.
   [paths] > joined
-    as-string. > joined-path
+    string > joined-path
       as-bytes.
         joined.
           text ^.separator
@@ -132,11 +132,10 @@
               --
       determined. > @
         ^.^.posix
-          as-string.
-            if.
-              normalized.eq "//"
-              "/"
-              normalized
+          if.
+            normalized.eq "//"
+            "/"
+            string normalized
 
     # Resolves `other` path against `^.uri` and returns as new `path` from it.
     # The original `uri` and resolving `other` may be:
@@ -269,7 +268,7 @@
     "\\" > separator
     determined. > @
       validated
-        as-string.
+        string
           as-bytes.
             validated.separated-correctly
               uri
@@ -397,11 +396,10 @@
                 --
         determined. > @
           ^.^.validated
-            as-string.
-              if.
-                normalized.eq "\\\\"
-                ^.separator
-                normalized
+            if.
+              normalized.eq "\\\\"
+              ^.separator
+              string normalized
 
       # Resolves `other` path against `^.uri` and returns as new `path` from it.
       # Original `uri` and `other` path for resolving may be:
diff --git a/objects/org/eolang/fs/tmpdir.eo b/objects/org/eolang/fs/tmpdir.eo
index 76bdab7b..5a1e3617 100644
--- a/objects/org/eolang/fs/tmpdir.eo
+++ b/objects/org/eolang/fs/tmpdir.eo
@@ -27,7 +27,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.fs
-+version 0.46.0
++version 0.48.1
 
 # Temporary directory.
 # For Unix/MacOS uses the path supplied by the first environment variable
diff --git a/objects/org/eolang/go.eo b/objects/org/eolang/go.eo
index f977baba..9a468a1a 100644
--- a/objects/org/eolang/go.eo
+++ b/objects/org/eolang/go.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # Non-conditional forward and backward jumps.
 # Forward jump instantly returns provided object to `g.forward` without touching
diff --git a/objects/org/eolang/i16.eo b/objects/org/eolang/i16.eo
index 5d4d80d2..6910db59 100644
--- a/objects/org/eolang/i16.eo
+++ b/objects/org/eolang/i16.eo
@@ -24,9 +24,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # The 16 bits signed integer.
 # Here `as-bytes` must be a `bytes` object.
diff --git a/objects/org/eolang/i32.eo b/objects/org/eolang/i32.eo
index c55210aa..6867402e 100644
--- a/objects/org/eolang/i32.eo
+++ b/objects/org/eolang/i32.eo
@@ -24,9 +24,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # The 32 bits signed integer.
 # Here `as-bytes` must be a `bytes` object.
diff --git a/objects/org/eolang/i64.eo b/objects/org/eolang/i64.eo
index 47a28619..bf8786b7 100644
--- a/objects/org/eolang/i64.eo
+++ b/objects/org/eolang/i64.eo
@@ -24,9 +24,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # The 64 bits signed integer.
 # Here `as-bytes` must be a `bytes` object.
diff --git a/objects/org/eolang/io/bytes-as-input.eo b/objects/org/eolang/io/bytes-as-input.eo
index 371f4388..d4541be5 100644
--- a/objects/org/eolang/io/bytes-as-input.eo
+++ b/objects/org/eolang/io/bytes-as-input.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # Makes an `input` from bytes.
 # Here `bts` is sequence of bytes or an object that can be dataized
diff --git a/objects/org/eolang/io/console.eo b/objects/org/eolang/io/console.eo
index e21adec6..6d32c1b9 100644
--- a/objects/org/eolang/io/console.eo
+++ b/objects/org/eolang/io/console.eo
@@ -26,7 +26,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # The `console` object is basic I/O object that allows to
 # interact with operation system console.
diff --git a/objects/org/eolang/io/dead-input.eo b/objects/org/eolang/io/dead-input.eo
index 29ba921a..2637e47c 100644
--- a/objects/org/eolang/io/dead-input.eo
+++ b/objects/org/eolang/io/dead-input.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # Dead input is an input that reads from nowhere and always
 # returns empty sequence of bytes `--`.
diff --git a/objects/org/eolang/io/dead-output.eo b/objects/org/eolang/io/dead-output.eo
index f07a731b..b9d1ca01 100644
--- a/objects/org/eolang/io/dead-output.eo
+++ b/objects/org/eolang/io/dead-output.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # Dead output is an output that writes to nowhere.
 [] > dead-output
diff --git a/objects/org/eolang/io/input-length.eo b/objects/org/eolang/io/input-length.eo
index 439dcfa8..80abcf1a 100644
--- a/objects/org/eolang/io/input-length.eo
+++ b/objects/org/eolang/io/input-length.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # Reads all the bytes from provided `input` and returns its length.
 [input] > input-length
diff --git a/objects/org/eolang/io/malloc-as-output.eo b/objects/org/eolang/io/malloc-as-output.eo
index dae8ef56..1adcf079 100644
--- a/objects/org/eolang/io/malloc-as-output.eo
+++ b/objects/org/eolang/io/malloc-as-output.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # Makes an output from allocated block in memory.
 # Here `allocated` is `malloc.of.allocated` object.
diff --git a/objects/org/eolang/io/stdin.eo b/objects/org/eolang/io/stdin.eo
index c5e1118c..8971bc9f 100644
--- a/objects/org/eolang/io/stdin.eo
+++ b/objects/org/eolang/io/stdin.eo
@@ -25,7 +25,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # The `stdin` object is a convenient wrapper on `console` object
 # which is used as input only and allows to read the data from console.
diff --git a/objects/org/eolang/io/stdout.eo b/objects/org/eolang/io/stdout.eo
index 0752b77a..657c52fe 100644
--- a/objects/org/eolang/io/stdout.eo
+++ b/objects/org/eolang/io/stdout.eo
@@ -24,7 +24,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # The `stdout` object is convenient wrapper on `console` object which
 # uses it as output only and allows to print given argument to console as `string`:
diff --git a/objects/org/eolang/io/tee-input.eo b/objects/org/eolang/io/tee-input.eo
index 628662fd..12ba7446 100644
--- a/objects/org/eolang/io/tee-input.eo
+++ b/objects/org/eolang/io/tee-input.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # Tee input is an input that reads from provided `input`,
 # writes to provided `output` and behaves as provided `input`.
diff --git a/objects/org/eolang/malloc.eo b/objects/org/eolang/malloc.eo
index f206eeaf..983f9494 100644
--- a/objects/org/eolang/malloc.eo
+++ b/objects/org/eolang/malloc.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # The `malloc` object is an abstraction of a storage of data in heap
 # memory. The implementation of `malloc` is platform dependent. It may
@@ -81,6 +81,12 @@
 # Here the void attribute in the scope object is memory-block object which provides API to write
 # and read data to the memory.
 [] > malloc
+  # Allocates empty block in memory.
+  [scope] > empty
+    malloc.of > @
+      0
+      scope
+
   # Allocates block in memory for given `object`. After allocation the provided object is dataized
   # and the data are written into memory.
   [object scope] > for
diff --git a/objects/org/eolang/math/angle.eo b/objects/org/eolang/math/angle.eo
index af672221..0e877d19 100644
--- a/objects/org/eolang/math/angle.eo
+++ b/objects/org/eolang/math/angle.eo
@@ -24,9 +24,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.math
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # The angle.
 [value] > angle
diff --git a/objects/org/eolang/math/e.eo b/objects/org/eolang/math/e.eo
index b9b7ba7e..6802d519 100644
--- a/objects/org/eolang/math/e.eo
+++ b/objects/org/eolang/math/e.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.math
-+version 0.46.0
++version 0.48.1
 
 # The Euler's number
 2.7182818284590452354 > e
diff --git a/objects/org/eolang/math/integral.eo b/objects/org/eolang/math/integral.eo
index 1e8e237b..7f7207e5 100644
--- a/objects/org/eolang/math/integral.eo
+++ b/objects/org/eolang/math/integral.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.math
-+version 0.46.0
++version 0.48.1
 
 # Counts integral from `a` to `b`.
 # Here `func` is integration function, `a` is an upper limit,
diff --git a/objects/org/eolang/math/numbers.eo b/objects/org/eolang/math/numbers.eo
index 1bb9dd34..db71c080 100644
--- a/objects/org/eolang/math/numbers.eo
+++ b/objects/org/eolang/math/numbers.eo
@@ -24,7 +24,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.math
-+version 0.46.0
++version 0.48.1
 
 # Sequence of numbers.
 # Here `sequence` must be a `tuple` or any `tuple` decorator of `number` objects.
diff --git a/objects/org/eolang/math/pi.eo b/objects/org/eolang/math/pi.eo
index f6f35293..4e71da19 100644
--- a/objects/org/eolang/math/pi.eo
+++ b/objects/org/eolang/math/pi.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.math
-+version 0.46.0
++version 0.48.1
 
 # The PI number
 3.14159265358979323846 > pi
diff --git a/objects/org/eolang/math/random.eo b/objects/org/eolang/math/random.eo
index 265d2171..68840420 100644
--- a/objects/org/eolang/math/random.eo
+++ b/objects/org/eolang/math/random.eo
@@ -26,7 +26,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.math
-+version 0.46.0
++version 0.48.1
 
 # Pseudo random number.
 [seed] > random
diff --git a/objects/org/eolang/math/real.eo b/objects/org/eolang/math/real.eo
index 712a1af2..9c7b00c5 100644
--- a/objects/org/eolang/math/real.eo
+++ b/objects/org/eolang/math/real.eo
@@ -24,9 +24,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.math
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # Real number.
 [num] > real
diff --git a/objects/org/eolang/nan.eo b/objects/org/eolang/nan.eo
index 21fa07c5..fc172c47 100644
--- a/objects/org/eolang/nan.eo
+++ b/objects/org/eolang/nan.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # Not a number.
 [] > nan
diff --git a/objects/org/eolang/negative-infinity.eo b/objects/org/eolang/negative-infinity.eo
index 0a939ca5..9bfb458b 100644
--- a/objects/org/eolang/negative-infinity.eo
+++ b/objects/org/eolang/negative-infinity.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # Negative infinity.
 [] > negative-infinity
diff --git a/objects/org/eolang/net/socket.eo b/objects/org/eolang/net/socket.eo
index 404fc7ea..52b447b4 100644
--- a/objects/org/eolang/net/socket.eo
+++ b/objects/org/eolang/net/socket.eo
@@ -27,7 +27,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.net
-+version 0.46.0
++version 0.48.1
 
 # Socket.
 #
diff --git a/objects/org/eolang/number.eo b/objects/org/eolang/number.eo
index 015ae09e..eaef186a 100644
--- a/objects/org/eolang/number.eo
+++ b/objects/org/eolang/number.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # The `number` object is an abstraction of a 64-bit floating-point
 # number that internally is a chain of eight bytes.
diff --git a/objects/org/eolang/positive-infinity.eo b/objects/org/eolang/positive-infinity.eo
index 952ee41a..bd8aca4c 100644
--- a/objects/org/eolang/positive-infinity.eo
+++ b/objects/org/eolang/positive-infinity.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # Positive infinity.
 [] > positive-infinity
diff --git a/objects/org/eolang/rust.eo b/objects/org/eolang/rust.eo
index 862de34e..e371cd1b 100644
--- a/objects/org/eolang/rust.eo
+++ b/objects/org/eolang/rust.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # Rust insert.
 [code portal params] > rust /?
diff --git a/objects/org/eolang/seq.eo b/objects/org/eolang/seq.eo
index e37493ca..0256befe 100644
--- a/objects/org/eolang/seq.eo
+++ b/objects/org/eolang/seq.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # Sequence.
 # The object, when being dataized, dataizes all provided
diff --git a/objects/org/eolang/string.eo b/objects/org/eolang/string.eo
index 3d9cee97..d676c731 100644
--- a/objects/org/eolang/string.eo
+++ b/objects/org/eolang/string.eo
@@ -24,7 +24,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # The `string` object is an abstraction of a text string, which
 # internally is a chain of bytes.
diff --git a/objects/org/eolang/structs/bytes-as-array.eo b/objects/org/eolang/structs/bytes-as-array.eo
index c2d8beb4..1551098e 100644
--- a/objects/org/eolang/structs/bytes-as-array.eo
+++ b/objects/org/eolang/structs/bytes-as-array.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # Represents sequence of bytes as array.
 # Here `bts` is `bytes` objects, the return value is `tuple` where
diff --git a/objects/org/eolang/structs/hash-code-of.eo b/objects/org/eolang/structs/hash-code-of.eo
index 64032d9f..d036c4f2 100644
--- a/objects/org/eolang/structs/hash-code-of.eo
+++ b/objects/org/eolang/structs/hash-code-of.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # Hash code - the pseudo-unique float numeric
 # representation of an object.
diff --git a/objects/org/eolang/structs/list.eo b/objects/org/eolang/structs/list.eo
index b4490e6a..5e06d0f7 100644
--- a/objects/org/eolang/structs/list.eo
+++ b/objects/org/eolang/structs/list.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # List implements based operations on collections like reducing, mapping, filtering, etc.
 # Decorates and extends `tuple`.
diff --git a/objects/org/eolang/structs/map.eo b/objects/org/eolang/structs/map.eo
index 46813eb5..4c5b8c97 100644
--- a/objects/org/eolang/structs/map.eo
+++ b/objects/org/eolang/structs/map.eo
@@ -26,7 +26,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # Hash-map.
 # Here `pairs` must be a `tuple` of `tuple`s where each sub-tuple consists of 2
diff --git a/objects/org/eolang/structs/range-of-ints.eo b/objects/org/eolang/structs/range-of-ints.eo
index 1a8edef7..0c61e0f5 100644
--- a/objects/org/eolang/structs/range-of-ints.eo
+++ b/objects/org/eolang/structs/range-of-ints.eo
@@ -24,7 +24,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # Range of integers from `start` to `end` (soft border) with step = 1.
 # Here `start` and `end` must be `int`s. If they're not - an error will
diff --git a/objects/org/eolang/structs/range.eo b/objects/org/eolang/structs/range.eo
index 93efc4c0..fed9d3b3 100644
--- a/objects/org/eolang/structs/range.eo
+++ b/objects/org/eolang/structs/range.eo
@@ -24,7 +24,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # Range - create a `list` containing a range of elements
 # Here `start` must be a abstract object that must have an object `next` to get
diff --git a/objects/org/eolang/structs/set.eo b/objects/org/eolang/structs/set.eo
index e995918c..aa78f7ad 100644
--- a/objects/org/eolang/structs/set.eo
+++ b/objects/org/eolang/structs/set.eo
@@ -25,7 +25,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # Set - is an unordered `list` of unique objects.
 [lst] > set
diff --git a/objects/org/eolang/switch.eo b/objects/org/eolang/switch.eo
index e11b43b7..5abfe514 100644
--- a/objects/org/eolang/switch.eo
+++ b/objects/org/eolang/switch.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # The object allows to choose right options according to cases conditions.
 # Parameter cases is the array of two dimensional array, which
diff --git a/objects/org/eolang/sys/getenv.eo b/objects/org/eolang/sys/getenv.eo
index 81fb6e48..560933d2 100644
--- a/objects/org/eolang/sys/getenv.eo
+++ b/objects/org/eolang/sys/getenv.eo
@@ -26,7 +26,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.sys
-+version 0.46.0
++version 0.48.1
 
 # Get environment variable as `string`.
 # If return `string` is empty - the variable does not exist.
diff --git a/objects/org/eolang/sys/line-separator.eo b/objects/org/eolang/sys/line-separator.eo
index f788551c..c4ba9c57 100644
--- a/objects/org/eolang/sys/line-separator.eo
+++ b/objects/org/eolang/sys/line-separator.eo
@@ -24,7 +24,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.sys
-+version 0.46.0
++version 0.48.1
 
 # Returns the system-dependent line separator string.
 # On UNIX systems, it returns "\n";
diff --git a/objects/org/eolang/sys/os.eo b/objects/org/eolang/sys/os.eo
index 1953956a..ed25e70a 100644
--- a/objects/org/eolang/sys/os.eo
+++ b/objects/org/eolang/sys/os.eo
@@ -24,9 +24,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.sys
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # Represents the name of the operating system.
 [] > os
diff --git a/objects/org/eolang/sys/posix.eo b/objects/org/eolang/sys/posix.eo
index 70e1402c..834f9e3a 100644
--- a/objects/org/eolang/sys/posix.eo
+++ b/objects/org/eolang/sys/posix.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.sys
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # Makes a Unix syscall by name with POSIX interface.
 # See https://filippo.io/linux-syscall-table/.
diff --git a/objects/org/eolang/sys/win32.eo b/objects/org/eolang/sys/win32.eo
index d875f691..e044a389 100644
--- a/objects/org/eolang/sys/win32.eo
+++ b/objects/org/eolang/sys/win32.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.sys
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # Makes a kernel32.dll function call by name.
 #
diff --git a/objects/org/eolang/true.eo b/objects/org/eolang/true.eo
index 732c5404..de2839fd 100644
--- a/objects/org/eolang/true.eo
+++ b/objects/org/eolang/true.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # The object is a TRUE boolean state.
 [] > true
diff --git a/objects/org/eolang/try.eo b/objects/org/eolang/try.eo
index e395ad3d..7d0d0d7a 100644
--- a/objects/org/eolang/try.eo
+++ b/objects/org/eolang/try.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # Try, catch and finally. This object helps catch errors created by the
 # `error` object. When being dataized, such objects will crash the problem.
diff --git a/objects/org/eolang/tuple.eo b/objects/org/eolang/tuple.eo
index 4a723eb9..bd4cbf37 100644
--- a/objects/org/eolang/tuple.eo
+++ b/objects/org/eolang/tuple.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # Tuple.
 [head tail] > tuple
diff --git a/objects/org/eolang/txt/regex.eo b/objects/org/eolang/txt/regex.eo
index ec21bc7c..2e9d6e90 100644
--- a/objects/org/eolang/txt/regex.eo
+++ b/objects/org/eolang/txt/regex.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.txt
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # Regular expression in Perl format.
 # Here `pattern` is a string pattern.
diff --git a/objects/org/eolang/txt/sprintf.eo b/objects/org/eolang/txt/sprintf.eo
index 6c3c3ee2..549128a9 100644
--- a/objects/org/eolang/txt/sprintf.eo
+++ b/objects/org/eolang/txt/sprintf.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.txt
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # The sprintf object allows you to format and output text depending
 # on the arguments passed to it.
diff --git a/objects/org/eolang/txt/sscanf.eo b/objects/org/eolang/txt/sscanf.eo
index f71cf227..03470a78 100644
--- a/objects/org/eolang/txt/sscanf.eo
+++ b/objects/org/eolang/txt/sscanf.eo
@@ -23,9 +23,9 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.txt
-+rt jvm org.eolang:eo-runtime:0.46.0
++rt jvm org.eolang:eo-runtime:0.48.1
 +rt node eo2js-runtime:0.0.0
-+version 0.46.0
++version 0.48.1
 
 # Reads formatted input from a string.
 # This object has two free attributes:
diff --git a/objects/org/eolang/txt/text.eo b/objects/org/eolang/txt/text.eo
index fb3204da..90db3f60 100644
--- a/objects/org/eolang/txt/text.eo
+++ b/objects/org/eolang/txt/text.eo
@@ -28,7 +28,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang.txt
-+version 0.46.0
++version 0.48.1
 
 # Text.
 [origin] > text
@@ -108,17 +108,17 @@
     ^.origin > delimiter!
     items.at 0 > first
     items.length > len!
+    if. > not-empty!
+      1.eq len
+      first
+      concat.
+        first.as-bytes
+        with-delimiter "".as-bytes 1
     text > @
       if.
         0.eq len
         ""
-        if.
-          1.eq len
-          first
-          as-string.
-            concat.
-              first.as-bytes
-              with-delimiter "".as-bytes 1
+        string not-empty
 
     [acc index] > with-delimiter
       if. > @
@@ -146,7 +146,7 @@
         if.
           0.eq amount
           ""
-          as-string.
+          string
             rec-repeated bts 1
 
     [accum index] > rec-repeated
@@ -249,7 +249,7 @@
       number ascii-a
       ascii "A"
     text > @
-      as-string.
+      string
         reduced.
           list
             bytes-as-array
@@ -282,7 +282,7 @@
     ^.up-cased.ascii "Z" > ascii-z
     ^.up-cased.ascii "A" > ascii-a
     text > @
-      as-string.
+      string
         reduced.
           list
             bytes-as-array
@@ -349,7 +349,7 @@
                 block.from.minus start
             ^.replacement
           block.to
-        as-string.
+        string
           accum.concat
             ^.reinit.slice
               start
@@ -404,7 +404,7 @@
       0.eq others.length
       ^
       text
-        as-string.
+        string
           reduced.
             list others
             ^.origin.as-bytes
diff --git a/objects/org/eolang/while.eo b/objects/org/eolang/while.eo
index 372b8ea9..4ab42b73 100644
--- a/objects/org/eolang/while.eo
+++ b/objects/org/eolang/while.eo
@@ -23,7 +23,7 @@
 +architect yegor256@gmail.com
 +home https://github.com/objectionary/eo
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # The `while` object is very similar to a loop with a pre-condition.
 # Here's how you can use it:
diff --git a/tests/org/eolang/as-phi-tests.eo b/tests/org/eolang/as-phi-tests.eo
index 24444268..c006df54 100644
--- a/tests/org/eolang/as-phi-tests.eo
+++ b/tests/org/eolang/as-phi-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > prints-itself
diff --git a/tests/org/eolang/bool-tests.eo b/tests/org/eolang/bool-tests.eo
index b314d755..8c185e36 100644
--- a/tests/org/eolang/bool-tests.eo
+++ b/tests/org/eolang/bool-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > compares-two-bools
diff --git a/tests/org/eolang/bytes-tests.eo b/tests/org/eolang/bytes-tests.eo
index 8a74da75..cb2e04cd 100644
--- a/tests/org/eolang/bytes-tests.eo
+++ b/tests/org/eolang/bytes-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > takes-part-of-bytes
@@ -55,7 +55,7 @@
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > turns-bytes-into-a-string
   eq. > @
-    as-string.
+    string
       E4-BD-A0-E5-A5-BD-2C-20-D0-B4-D1-80-D1-83-D0-B3-21
     "你好, друг!"
 
@@ -351,8 +351,7 @@
     "hello ".as-bytes
     "world".as-bytes
   eq. > @
-    as-string.
-      s-bytes
+    string s-bytes
     "hello world"
 
 # This unit test is supposed to check the functionality of the corresponding object.
diff --git a/tests/org/eolang/cti-test.eo b/tests/org/eolang/cti-test.eo
index 823b8410..a728c94f 100644
--- a/tests/org/eolang/cti-test.eo
+++ b/tests/org/eolang/cti-test.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > just-prints-warning
diff --git a/tests/org/eolang/dataized-tests.eo b/tests/org/eolang/dataized-tests.eo
index 5f98773c..b569c016 100644
--- a/tests/org/eolang/dataized-tests.eo
+++ b/tests/org/eolang/dataized-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > dataized-does-not-do-recalculation
diff --git a/tests/org/eolang/fs/dir-tests.eo b/tests/org/eolang/fs/dir-tests.eo
index b5126766..65f65ff6 100644
--- a/tests/org/eolang/fs/dir-tests.eo
+++ b/tests/org/eolang/fs/dir-tests.eo
@@ -26,7 +26,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.fs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > bound-tmpfile-does-not-recreates-file
diff --git a/tests/org/eolang/fs/file-tests.eo b/tests/org/eolang/fs/file-tests.eo
index 421c79ab..ce693cce 100644
--- a/tests/org/eolang/fs/file-tests.eo
+++ b/tests/org/eolang/fs/file-tests.eo
@@ -29,7 +29,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.fs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > check-if-current-directory-is-directory
diff --git a/tests/org/eolang/fs/path-tests.eo b/tests/org/eolang/fs/path-tests.eo
index d88dfc54..e11c29ca 100644
--- a/tests/org/eolang/fs/path-tests.eo
+++ b/tests/org/eolang/fs/path-tests.eo
@@ -26,7 +26,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.fs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > determines-separator-depending-on-os
diff --git a/tests/org/eolang/fs/tmpdir-tests.eo b/tests/org/eolang/fs/tmpdir-tests.eo
index 7fea7818..b1b68c06 100644
--- a/tests/org/eolang/fs/tmpdir-tests.eo
+++ b/tests/org/eolang/fs/tmpdir-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.fs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 tmpdir.exists > [] > global-temp-dir-exists
diff --git a/tests/org/eolang/go-tests.eo b/tests/org/eolang/go-tests.eo
index 283ce8d7..bf7aad18 100644
--- a/tests/org/eolang/go-tests.eo
+++ b/tests/org/eolang/go-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > goto-jumps-backwards
diff --git a/tests/org/eolang/i16-tests.eo b/tests/org/eolang/i16-tests.eo
index fd0a9646..3aee462f 100644
--- a/tests/org/eolang/i16-tests.eo
+++ b/tests/org/eolang/i16-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > i16-has-valid-bytes
diff --git a/tests/org/eolang/i32-tests.eo b/tests/org/eolang/i32-tests.eo
index a135772e..4ac53ccb 100644
--- a/tests/org/eolang/i32-tests.eo
+++ b/tests/org/eolang/i32-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > i32-has-valid-bytes
diff --git a/tests/org/eolang/i64-tests.eo b/tests/org/eolang/i64-tests.eo
index 9c8dfedd..400f1c01 100644
--- a/tests/org/eolang/i64-tests.eo
+++ b/tests/org/eolang/i64-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > i64-has-valid-bytes
diff --git a/tests/org/eolang/io/bytes-as-input-test.eo b/tests/org/eolang/io/bytes-as-input-test.eo
index 1f145247..854de233 100644
--- a/tests/org/eolang/io/bytes-as-input-test.eo
+++ b/tests/org/eolang/io/bytes-as-input-test.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > makes-an-input-from-bytes-and-reads
diff --git a/tests/org/eolang/io/console-test.eo b/tests/org/eolang/io/console-test.eo
new file mode 100644
index 00000000..c75f2220
--- /dev/null
+++ b/tests/org/eolang/io/console-test.eo
@@ -0,0 +1,34 @@
+# The MIT License (MIT)
+#
+# Copyright (c) 2016-2024 Objectionary.com
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
++alias org.eolang.io.console
++architect yegor256@gmail.com
++home https://github.com/objectionary/eo
++tests
++package org.eolang.io
++version 0.48.1
+
+# Prints a simple message to the console. We can't validate
+# the output, so we just run it and see if it crashes.
+[] > writes-to-console
+  console.write > @
+    "Hello, console-test!\n"
diff --git a/tests/org/eolang/io/dead-input-tests.eo b/tests/org/eolang/io/dead-input-tests.eo
index 0327704b..cbc6bb56 100644
--- a/tests/org/eolang/io/dead-input-tests.eo
+++ b/tests/org/eolang/io/dead-input-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > reads-empty-bytes
diff --git a/tests/org/eolang/io/dead-output-tests.eo b/tests/org/eolang/io/dead-output-tests.eo
index 992342c2..6af0b2b6 100644
--- a/tests/org/eolang/io/dead-output-tests.eo
+++ b/tests/org/eolang/io/dead-output-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 dead-output.write 01-02-03 > [] > writes-bytes-to-nowhere
diff --git a/tests/org/eolang/io/input-length-tests.eo b/tests/org/eolang/io/input-length-tests.eo
index 0452e01b..655c171a 100644
--- a/tests/org/eolang/io/input-length-tests.eo
+++ b/tests/org/eolang/io/input-length-tests.eo
@@ -28,7 +28,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > reads-all-bytes-and-returns-length
diff --git a/tests/org/eolang/io/malloc-as-output-test.eo b/tests/org/eolang/io/malloc-as-output-test.eo
index 254d6526..cabcba65 100644
--- a/tests/org/eolang/io/malloc-as-output-test.eo
+++ b/tests/org/eolang/io/malloc-as-output-test.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > makes-an-output-from-malloc-and-writes
diff --git a/tests/org/eolang/io/stdout-test.eo b/tests/org/eolang/io/stdout-test.eo
new file mode 100644
index 00000000..518ae981
--- /dev/null
+++ b/tests/org/eolang/io/stdout-test.eo
@@ -0,0 +1,34 @@
+# The MIT License (MIT)
+#
+# Copyright (c) 2016-2024 Objectionary.com
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
++alias org.eolang.io.stdout
++architect yegor256@gmail.com
++home https://github.com/objectionary/eo
++tests
++package org.eolang.io
++version 0.48.1
+
+# Prints a simple message to the console. We can't validate
+# the output, so we just run it and see if it crashes.
+[] > prints-to-console
+  stdout > @
+    "Hello, stdout-test!\n"
diff --git a/tests/org/eolang/io/tee-input-tests.eo b/tests/org/eolang/io/tee-input-tests.eo
index 5de83b92..3e6f1295 100644
--- a/tests/org/eolang/io/tee-input-tests.eo
+++ b/tests/org/eolang/io/tee-input-tests.eo
@@ -27,7 +27,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.io
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > reads-from-bytes-and-writes-to-memory
diff --git a/tests/org/eolang/malloc-tests.eo b/tests/org/eolang/malloc-tests.eo
index f0979f69..27f02db1 100644
--- a/tests/org/eolang/malloc-tests.eo
+++ b/tests/org/eolang/malloc-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > writes-into-memory-of
@@ -61,8 +61,7 @@
       [f]
         malloc.of > second
           1
-          [s] >>
-            f.put (f.as-number.plus 1) > @
+          f.put (f.as-number.plus 1) > [s] >>
         seq > @
           *
             second
@@ -168,8 +167,7 @@
     [b]
       malloc.of > @
         10
-        [m] >>
-          b.put (m.size.eq 10) > @
+        b.put (m.size.eq 10) > [m] >>
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > malloc-writes-and-reads
@@ -229,8 +227,7 @@
     0
     malloc.of
       0
-      [m]
-        m.size > @
+      m.size > [m]
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > malloc-increases-block-size
@@ -263,3 +260,8 @@
   malloc.of > @
     1
     m.resized -1 > [m]
+
+# This unit test is supposed to check the functionality of the corresponding object.
+[] > malloc-empty-is-empty
+  malloc.empty > @
+    m.size.eq 0 > [m]
diff --git a/tests/org/eolang/math/angle-tests.eo b/tests/org/eolang/math/angle-tests.eo
index ac2b17ad..a4574ace 100644
--- a/tests/org/eolang/math/angle-tests.eo
+++ b/tests/org/eolang/math/angle-tests.eo
@@ -26,7 +26,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.math
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > sin-zero
diff --git a/tests/org/eolang/math/integral-tests.eo b/tests/org/eolang/math/integral-tests.eo
index b22a3861..d0e59e8f 100644
--- a/tests/org/eolang/math/integral-tests.eo
+++ b/tests/org/eolang/math/integral-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.math
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > calculates-lineal-integral
diff --git a/tests/org/eolang/math/numbers-tests.eo b/tests/org/eolang/math/numbers-tests.eo
index 3ad8fc56..a018294c 100644
--- a/tests/org/eolang/math/numbers-tests.eo
+++ b/tests/org/eolang/math/numbers-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.math
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 (numbers *).max > [] > throws-on-taking-max-from-empty-sequence-of-numbers
diff --git a/tests/org/eolang/math/random-tests.eo b/tests/org/eolang/math/random-tests.eo
index 96bba2f7..a3046cc1 100644
--- a/tests/org/eolang/math/random-tests.eo
+++ b/tests/org/eolang/math/random-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.math
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > random-with-seed
diff --git a/tests/org/eolang/math/real-tests.eo b/tests/org/eolang/math/real-tests.eo
index 563b4dba..0fd815d0 100644
--- a/tests/org/eolang/math/real-tests.eo
+++ b/tests/org/eolang/math/real-tests.eo
@@ -27,7 +27,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.math
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > abs-int-positive
diff --git a/tests/org/eolang/nan-tests.eo b/tests/org/eolang/nan-tests.eo
index 9d9d17f3..b31c096a 100644
--- a/tests/org/eolang/nan-tests.eo
+++ b/tests/org/eolang/nan-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +package org.eolang
 +tests
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > nan-not-eq-number
diff --git a/tests/org/eolang/negative-infinity-tests.eo b/tests/org/eolang/negative-infinity-tests.eo
index eb0c66fc..1753e049 100644
--- a/tests/org/eolang/negative-infinity-tests.eo
+++ b/tests/org/eolang/negative-infinity-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +package org.eolang
 +tests
-+version 0.46.0
++version 0.48.1
 
 # Equal to.
 [] > negative-infinity-is-equal-to-one-div-zero
diff --git a/tests/org/eolang/number-tests.eo b/tests/org/eolang/number-tests.eo
index c6cbbf24..ad30a255 100644
--- a/tests/org/eolang/number-tests.eo
+++ b/tests/org/eolang/number-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > int-less-true
diff --git a/tests/org/eolang/positive-infinity-tests.eo b/tests/org/eolang/positive-infinity-tests.eo
index ad3a58b4..4976727b 100644
--- a/tests/org/eolang/positive-infinity-tests.eo
+++ b/tests/org/eolang/positive-infinity-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +package org.eolang
 +tests
-+version 0.46.0
++version 0.48.1
 
 # Equal to.
 [] > positive-infinity-is-equal-to-one-div-zero
diff --git a/tests/org/eolang/runtime-tests.eo b/tests/org/eolang/runtime-tests.eo
index d53997d9..0e63a3dd 100644
--- a/tests/org/eolang/runtime-tests.eo
+++ b/tests/org/eolang/runtime-tests.eo
@@ -25,7 +25,7 @@
 +tests
 +package org.eolang
 +unlint abstract-decoratee
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > understands-this-correctly
diff --git a/tests/org/eolang/rust-tests.eo b/tests/org/eolang/rust-tests.eo
index fa8166ae..13a67d52 100644
--- a/tests/org/eolang/rust-tests.eo
+++ b/tests/org/eolang/rust-tests.eo
@@ -23,7 +23,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # Works with long names correctly.
 [] > rust-long-variable
diff --git a/tests/org/eolang/seq-tests.eo b/tests/org/eolang/seq-tests.eo
index 998fc2e2..6e93fd25 100644
--- a/tests/org/eolang/seq-tests.eo
+++ b/tests/org/eolang/seq-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > seq-single-dataization-float-less
diff --git a/tests/org/eolang/string-tests.eo b/tests/org/eolang/string-tests.eo
index e285232b..fe6f4695 100644
--- a/tests/org/eolang/string-tests.eo
+++ b/tests/org/eolang/string-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > calculates-length-of-spaces-only
diff --git a/tests/org/eolang/structs/bytes-as-array-tests.eo b/tests/org/eolang/structs/bytes-as-array-tests.eo
index 21deb767..9fb41386 100644
--- a/tests/org/eolang/structs/bytes-as-array-tests.eo
+++ b/tests/org/eolang/structs/bytes-as-array-tests.eo
@@ -26,7 +26,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > converts-bytes-to-array
diff --git a/tests/org/eolang/structs/hash-code-of-tests.eo b/tests/org/eolang/structs/hash-code-of-tests.eo
index 660654ac..d566b8c5 100644
--- a/tests/org/eolang/structs/hash-code-of-tests.eo
+++ b/tests/org/eolang/structs/hash-code-of-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > hash-code-of-bools-is-number
diff --git a/tests/org/eolang/structs/list-tests.eo b/tests/org/eolang/structs/list-tests.eo
index 15baa807..fe4e714f 100644
--- a/tests/org/eolang/structs/list-tests.eo
+++ b/tests/org/eolang/structs/list-tests.eo
@@ -26,7 +26,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > list-should-not-be-empty
diff --git a/tests/org/eolang/structs/map-tests.eo b/tests/org/eolang/structs/map-tests.eo
index 722fb2db..5d6c2c4f 100644
--- a/tests/org/eolang/structs/map-tests.eo
+++ b/tests/org/eolang/structs/map-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > map-rebuilds-itself
diff --git a/tests/org/eolang/structs/range-of-ints-tests.eo b/tests/org/eolang/structs/range-of-ints-tests.eo
index f0979adb..b5767e8d 100644
--- a/tests/org/eolang/structs/range-of-ints-tests.eo
+++ b/tests/org/eolang/structs/range-of-ints-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > simple-range-of-ints-from-one-to-ten
diff --git a/tests/org/eolang/structs/range-tests.eo b/tests/org/eolang/structs/range-tests.eo
index 0aea0fae..b8af15e2 100644
--- a/tests/org/eolang/structs/range-tests.eo
+++ b/tests/org/eolang/structs/range-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > simple-range-from-one-to-ten
diff --git a/tests/org/eolang/structs/set-tests.eo b/tests/org/eolang/structs/set-tests.eo
index 9720a791..d70626ef 100644
--- a/tests/org/eolang/structs/set-tests.eo
+++ b/tests/org/eolang/structs/set-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.structs
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > set-rebuilds-itself
diff --git a/tests/org/eolang/switch-tests.eo b/tests/org/eolang/switch-tests.eo
index cff0fa13..de58c882 100644
--- a/tests/org/eolang/switch-tests.eo
+++ b/tests/org/eolang/switch-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > switch-simple-case
diff --git a/tests/org/eolang/sys/os-tests.eo b/tests/org/eolang/sys/os-tests.eo
index 2ea52443..9a8c4c51 100644
--- a/tests/org/eolang/sys/os-tests.eo
+++ b/tests/org/eolang/sys/os-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.sys
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > checks-os-family
diff --git a/tests/org/eolang/sys/posix-tests.eo b/tests/org/eolang/sys/posix-tests.eo
index 3478f6e7..4082d3a0 100644
--- a/tests/org/eolang/sys/posix-tests.eo
+++ b/tests/org/eolang/sys/posix-tests.eo
@@ -26,7 +26,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.sys
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > invokes-getpid-correctly
diff --git a/tests/org/eolang/sys/win32-tests.eo b/tests/org/eolang/sys/win32-tests.eo
index 700de9f4..c33a4f70 100644
--- a/tests/org/eolang/sys/win32-tests.eo
+++ b/tests/org/eolang/sys/win32-tests.eo
@@ -26,7 +26,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.sys
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > returns-valid-win32-inet-addr-for-localhost
diff --git a/tests/org/eolang/try-tests.eo b/tests/org/eolang/try-tests.eo
index c742b4b0..d633ccc5 100644
--- a/tests/org/eolang/try-tests.eo
+++ b/tests/org/eolang/try-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > catches-simple-exception
diff --git a/tests/org/eolang/tuple-tests.eo b/tests/org/eolang/tuple-tests.eo
index 078dbb17..e4cc7d6b 100644
--- a/tests/org/eolang/tuple-tests.eo
+++ b/tests/org/eolang/tuple-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > makes-tuple-through-special-syntax
diff --git a/tests/org/eolang/txt/regex-tests.eo b/tests/org/eolang/txt/regex-tests.eo
index 3a498203..9184719d 100644
--- a/tests/org/eolang/txt/regex-tests.eo
+++ b/tests/org/eolang/txt/regex-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.txt
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > matches-regex-against-the-pattern
diff --git a/tests/org/eolang/txt/sprintf-tests.eo b/tests/org/eolang/txt/sprintf-tests.eo
index 7b086e2b..d941e9f3 100644
--- a/tests/org/eolang/txt/sprintf-tests.eo
+++ b/tests/org/eolang/txt/sprintf-tests.eo
@@ -25,7 +25,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.txt
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > prints-simple-string
diff --git a/tests/org/eolang/txt/sscanf-tests.eo b/tests/org/eolang/txt/sscanf-tests.eo
index 32825680..5c27f695 100644
--- a/tests/org/eolang/txt/sscanf-tests.eo
+++ b/tests/org/eolang/txt/sscanf-tests.eo
@@ -27,7 +27,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.txt
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > sscanf-with-string
diff --git a/tests/org/eolang/txt/text-tests.eo b/tests/org/eolang/txt/text-tests.eo
index 06c8e91a..cbe5e0e1 100644
--- a/tests/org/eolang/txt/text-tests.eo
+++ b/tests/org/eolang/txt/text-tests.eo
@@ -27,7 +27,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang.txt
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > text-slices-the-origin-string
diff --git a/tests/org/eolang/while-tests.eo b/tests/org/eolang/while-tests.eo
index aca516b3..e429aff1 100644
--- a/tests/org/eolang/while-tests.eo
+++ b/tests/org/eolang/while-tests.eo
@@ -24,7 +24,7 @@
 +home https://github.com/objectionary/eo
 +tests
 +package org.eolang
-+version 0.46.0
++version 0.48.1
 
 # This unit test is supposed to check the functionality of the corresponding object.
 [] > while-dataizes-only-first-cycle