What's Changed
* Starts work on adding recipe upgrade feature by schuylermartin45 in https://github.com/conda/grayskull/pull/539
* Update tests.yml by marcelotrevisani in https://github.com/conda/grayskull/pull/545
* Fix package name based on local sdist archive by beenje in https://github.com/conda/grayskull/pull/536
* Add option to specify a package server mirror; clean up hardcoded URLs throughout codebase by FaustinCarter in https://github.com/conda/grayskull/pull/540
* Expand out the "compatible release" operator for semver dep by maresb in https://github.com/conda/grayskull/pull/544
* 🔄 synced file(s) with conda/infrastructure by conda-bot in https://github.com/conda/grayskull/pull/546
* Fix tests by beenje in https://github.com/conda/grayskull/pull/552
* Retrieve packages from top_level.txt when possible by beenje in https://github.com/conda/grayskull/pull/551
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/conda/grayskull/pull/524
New Contributors
* schuylermartin45 made their first contribution in https://github.com/conda/grayskull/pull/539
* FaustinCarter made their first contribution in https://github.com/conda/grayskull/pull/540
**Full Changelog**: https://github.com/conda/grayskull/compare/v2.6.0...v2.7.0