• Upgrades @actions/core to v1.2.6 for CVE-2020-15228. This action was not using the affected methods.
• Fix error handling in uploadChunk where 400-level errors were not being detected and handled correctly

• Adds input to limit the chunk upload size, useful for self-hosted runners with slower upload speeds
• No-op when executing on GHES

• Update @actions/cache package to v1.0.2 which allows cache action to use posix format when taring files.

• Replaces the http-client with the Azure Storage SDK for NodeJS when downloading cache content from Azure. This should help improve download performance and reliability as the SDK downloads files in 4 MB chunks, which can be parallelized and retried independently
• Display download progress and speed

Initial v2 release

What's new in v2

• Added support for multiple paths (#16), glob patterns, and single file caches (#33)
• Increased performance and improved cache sizes using zstd for compression for Linux and macOS runners (#184)
• Allowed caching for all events with a ref (#63)
• Created the @actions/cache npm package to allow other actions to utilize caching (#55)
• Added a best-effort step to delete the archive after extraction to reduces storage space (#209)

Bug Fixes

• Fall back to GNU tar on older versions of Windows that do not have BSD tar installed (#252)
• Fixed chunk upload retry logic (#305)

Improvements

• Improved reliability of the download cache APIs (#269)
• Added retries to API calls that failed due to retryable errors (#306)
• Improved error handling during both cache upload (#300) and download (#284)

Other

Updating action name back to "Cache" to fix the marketplace links (https://github.com/marketplace/actions/cache)

Improvements

• Increase cache size limit to 5 GB (#168)
• Add proxy support (#166)

Bug Fixes

• Use BSD tar on windows (#126) to support self-hosted runners (#91)

Improvements

• Improved reliability and speed of cache upload via chunked APIs (#128)
• Increased per-cache size limit to 2 GB to match the per-repo limit (#6)

Improvements

• Remove validation failures and warning annotations (#108)
• Mask download URL in logs (#110)