diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 0f2018a..0243b4c 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -16,6 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         version:
+          - '1.10'
           - '1'
           - 'pre'
         os:
diff --git a/src/reader.jl b/src/reader.jl
index 7ac82c2..8a62bf3 100644
--- a/src/reader.jl
+++ b/src/reader.jl
@@ -5,19 +5,27 @@ function unsafe_crc32(p::Ptr{UInt8}, nb::UInt, crc::UInt32)::UInt32
     )
 end
 
-const ByteArray = Union{
-    Base.CodeUnits{UInt8, String},
-    Vector{UInt8},
-    Base.FastContiguousSubArray{UInt8,1,Base.CodeUnits{UInt8,String}}, 
-    Base.FastContiguousSubArray{UInt8,1,Vector{UInt8}}
-}
+if VERSION ≥ v"1.11"
+    const ByteArray = Union{
+        Base.CodeUnits{UInt8, String},
+        Vector{UInt8},
+        Base.FastContiguousSubArray{UInt8,1,Base.CodeUnits{UInt8,String}}, 
+        Base.FastContiguousSubArray{UInt8,1,Vector{UInt8}},
+        Memory{UInt8},
+        Base.FastContiguousSubArray{UInt8,1,Memory{UInt8}}
+    }
+else
+    const ByteArray = Union{
+        Base.CodeUnits{UInt8, String},
+        Vector{UInt8},
+        Base.FastContiguousSubArray{UInt8,1,Base.CodeUnits{UInt8,String}}, 
+        Base.FastContiguousSubArray{UInt8,1,Vector{UInt8}}
+    }
+end
 
 # version of String(v::AbstractVector{UInt8}) that works consistently.
 function bytes2string(v::AbstractVector{UInt8})::String
-    String(v)
-end
-function bytes2string(v::Vector{UInt8})::String
-    GC.@preserve v unsafe_string(pointer(v), length(v))
+    String(view(v,:))
 end
 
 """
@@ -32,7 +40,17 @@ function zip_crc32(data::ByteArray, crc::UInt32=UInt32(0))::UInt32
 end
 
 function zip_crc32(data::AbstractVector{UInt8}, crc::UInt32=UInt32(0))::UInt32
-    zip_crc32(collect(data), crc)
+    start::Int64 = firstindex(data)
+    n::Int64 = length(data)
+    offset::Int64 = 0
+    buf = Vector{UInt8}(undef, min(n, Int64(24576)))
+    while offset < n
+        nb = min(n-offset, Int64(24576))
+        copyto!(buf, 1, data, offset + start, nb)
+        crc = zip_crc32(view(buf, 1:nb), crc)
+        offset += nb
+    end
+    crc
 end
 
 @inline readle(io::IO, ::Type{UInt64}) = UInt64(readle(io, UInt32)) | UInt64(readle(io, UInt32))<<32
diff --git a/test/Project.toml b/test/Project.toml
index 9c9a47b..24c6318 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -1,3 +1,6 @@
+[sources]
+ZipArchives = {path = ".."}
+
 [deps]
 Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
 Base64 = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
diff --git a/test/test_bytes2string.jl b/test/test_bytes2string.jl
index 6cbb8ed..45977e1 100644
--- a/test/test_bytes2string.jl
+++ b/test/test_bytes2string.jl
@@ -56,4 +56,24 @@ using OffsetArrays: Origin
     @test a == [0x62,0x62,0x63]
     @test c == [0x62,0x62,0x63]
     @test s == "abc"
+
+    if VERSION ≥ v"1.11"
+        a = Base.Memory{UInt8}(undef, 3)
+        a .= [0x41,0x42,0x43]
+        s = ZipArchives.bytes2string(a)
+        @test s == "ABC"
+        @test a == [0x41,0x42,0x43]
+        a[1] = 0x43
+        @test s == "ABC"
+        @test a == [0x43,0x42,0x43]
+
+        a = view(Base.Memory{UInt8}(undef, 3), 1:3)
+        a .= [0x41,0x42,0x43]
+        s = ZipArchives.bytes2string(a)
+        @test s == "ABC"
+        @test a == [0x41,0x42,0x43]
+        a[1] = 0x43
+        @test s == "ABC"
+        @test a == [0x43,0x42,0x43]
+    end
 end
\ No newline at end of file
diff --git a/test/test_reader.jl b/test/test_reader.jl
index 9e40321..080d10a 100644
--- a/test/test_reader.jl
+++ b/test/test_reader.jl
@@ -306,6 +306,25 @@ end
     @test zip_readentry(r, 1) == codeunits("KYDtLOxn")
 end
 
+if VERSION ≥ v"1.11"
+    @testset "reading from memory" begin
+        io = IOBuffer()
+        ZipWriter(io) do w
+            zip_writefile(w, "foo.txt", codeunits("KYDtLOxn"))
+        end
+        data = take!(io)
+        n = length(data)
+        a = Base.Memory{UInt8}(undef, n)
+        a .= data
+        r = ZipReader(a)
+        @test zip_names(r) == ["foo.txt"]
+        @test zip_readentry(r, 1) == codeunits("KYDtLOxn")
+        r = ZipReader(view(a, 1:length(a)))
+        @test zip_names(r) == ["foo.txt"]
+        @test zip_readentry(r, 1) == codeunits("KYDtLOxn")
+    end
+end
+
 function rewrite_zip(old::AbstractString, new::AbstractString)
     d = mmap(old)
     try
diff --git a/test/test_writer.jl b/test/test_writer.jl
index 4702d3b..8fea46e 100644
--- a/test/test_writer.jl
+++ b/test/test_writer.jl
@@ -439,4 +439,32 @@ end
     end
     r = ZipReader(take!(out))
     @test zip_readentry(r, "data.txt") == 0x01:0x0f
-end
\ No newline at end of file
+end
+
+if VERSION ≥ v"1.11"
+    @testset "zip_writefile on memory" begin
+        data = [0x41,0x42,0x43]
+        a = Base.Memory{UInt8}(undef, 3)
+        a .= data
+        @test zip_crc32(data) == zip_crc32(a)
+        out = IOBuffer()
+        ZipWriter(out) do w
+            zip_writefile(w, "data.txt", a)
+        end
+        r = ZipReader(take!(out))
+        @test zip_readentry(r, "data.txt") == data
+    end
+    @testset "zip_writefile on view of memory" begin
+        data = [0x41,0x42,0x43]
+        m = Base.Memory{UInt8}(undef, 3)
+        m .= data
+        a = view(m, :)
+        @test zip_crc32(data) == zip_crc32(a)
+        out = IOBuffer()
+        ZipWriter(out) do w
+            zip_writefile(w, "data.txt", a)
+        end
+        r = ZipReader(take!(out))
+        @test zip_readentry(r, "data.txt") == data
+    end
+end