diff --git a/CHANGES.rst b/CHANGES.rst
index 8cb27e378d..4d22f1d6c5 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,4 +1,4 @@
-1.6.1 (unreleased)
+1.6.1 (2022-07-15)
==================
general
diff --git a/README.md b/README.md
index ffdcd29945..9badf3b98c 100644
--- a/README.md
+++ b/README.md
@@ -214,6 +214,7 @@ contact the [JWST Help Desk](https://jwsthelp.stsci.edu).
| jwst tag | DMS build | CRDS_CONTEXT
(JWST OPS) | CRDS_CONTEXT
(JWST PUB) | Date | Notes |
|---------------------|-----------|----------------------------|----------------------------|------------|-----------------------------------------------|
+| 1.6.1 | B8.1rc2 | N/A | 0927 | 2022-07-15 | Second release candidate for B8.1 |
| 1.6.0 | B8.1rc1 | N/A | 0916 | 2022-07-11 | First release candidate for B8.1 |
| 1.5.3 | B8.0.1 | N/A | 0875 | 2022-06-20 | First patch release for B8.0 |
| 1.5.2 | B8.0 | 874 | 0850 | 2022-05-20 | Final release candidate for B8.0 |
diff --git a/requirements-sdp.txt b/requirements-sdp.txt
index 7e37013c4f..25bf4b1470 100644
--- a/requirements-sdp.txt
+++ b/requirements-sdp.txt
@@ -14,3 +14,77 @@
# conda activate sdp
# pip install -e .[test]
# pip freeze | grep -v jwst.git >> requirements-sdp.txt
+asdf==2.12.0
+asdf-astropy==0.2.1
+asdf-coordinates-schemas==0.1.0
+asdf-standard==1.0.2
+asdf-transform-schemas==0.2.2
+asdf-wcs-schemas==0.1.1
+astropy==5.1
+attrs==21.4.0
+BayesicFitting==3.0.1
+certifi==2022.6.15
+charset-normalizer==2.1.0
+ci-watson==0.6.1
+codecov==2.1.12
+colorama==0.4.5
+coverage==6.4.2
+crds==11.16.5
+cycler==0.11.0
+drizzle==1.13.4
+filelock==3.7.1
+flake8==4.0.1
+fonttools==4.34.4
+future==0.18.2
+getch==1.0
+gwcs==0.18.1
+idna==3.3
+imageio==2.19.3
+iniconfig==1.1.1
+jmespath==1.0.1
+jsonschema==4.7.2
+-e git+https://github.com/spacetelescope/jwst@1.6.1#egg=jwst
+kiwisolver==1.4.3
+lxml==4.9.1
+matplotlib==3.5.2
+mccabe==0.6.1
+networkx==2.8.4
+numpy==1.23.1
+packaging==21.3
+Parsley==1.3
+photutils==1.5.0
+Pillow==9.2.0
+pluggy==1.0.0
+poppy==1.0.3
+psutil==5.9.1
+py==1.11.0
+pycodestyle==2.8.0
+pyerfa==2.0.0.1
+pyflakes==2.4.0
+pyparsing==3.0.9
+pyrsistent==0.18.1
+pytest==7.1.2
+pytest-cov==3.0.0
+pytest-doctestplus==0.12.0
+pytest-openfiles==0.5.0
+python-dateutil==2.8.2
+PyWavelets==1.3.0
+PyYAML==6.0
+requests==2.28.1
+requests-mock==1.9.3
+scikit-image==0.19.3
+scipy==1.8.1
+semantic-version==2.10.0
+six==1.16.0
+spherical-geometry==1.2.22
+stcal==1.0.0
+stdatamodels==0.4.3
+stpipe==0.4.1
+stsci.image==2.3.5
+stsci.imagestats==1.6.3
+stsci.stimage==0.2.5
+tifffile==2022.5.4
+tomli==2.0.1
+tweakwcs==0.7.4
+urllib3==1.26.10
+wiimatch==0.2.1
\ No newline at end of file