Highlights

Enabling Retry Context (#909)
Enabling caching for shared memory to prevent the recreation of resources (#844)
Update azure.functions version to 1.9.0 (#963)
Enable dependency isolation by default for python 3.10 (#922)
Enable debug logging using the PYTHON_ENABLE_DEBUG_LOGGING flag (#939, #948)
Preparing for Worker for Python 3.10 (#961, #936, #966)

What's Changed (Detailed)

Using the cache for function bindings and not deleting shared memory resources upon request to close by @gohar94 in #844
Add dotnet 5.0.x in CI pipeline to fix errors by @vrdmr in #901
Update logic to push the Python worker package to the AzureFunctionsPreRelease feed by @Francisco-Gamino in #908
Added Retry Context for python worker by @gavin-aguiar in #909
Update Python SDK Version to 1.8.0 by @vrdmr in #913
add sbom generator task in the pipeline by @arroyc in #918
remove copy file task by @arroyc in #921
Added e2e tests for dependency isolation by @gavin-aguiar in #919
Enable dependency isolation by default for python 3.10 by @gavin-aguiar in #922
update pipeline's agent pool as per bi operation recommendation by @arroyc in #925
Enable debug logging using the PYTHON_ENABLE_DEBUG_LOGGING flag by @YunchuWang in #939
Adding Shared Memory Diagrams by @shreyabatra4 in #942
Add comments to enable debug logging tests by @YunchuWang in #943
Make SBOM manifests packaged by @arroyc in #941
Enable debug logging add recommendation by @YunchuWang in #948
Setting up dev as V4 branch for PyWorker by @vrdmr in #936
Enabling Python 3.10 CI and other changes by @vrdmr in #961
Bumping up azure-functions==1.9.0 by @vrdmr in #963
Fix publish SBOM manifest with nuget package and changing Win to Linux for release pipeline by @arroyc in #960
Preparing nuspec file and pipeline changes for release by @vrdmr in #966

Full Changelog: 1.2.6...4.0.0