v1.22.0

What's Changed

New Features

• Add placeholder close method to BaseViewer by @iisakkirotko in #2520
• Provide a way to avoid creating world<->pixel links in datasets by @astrofrog in #2526
• Add list plugins method and tests by @CyclingNinja in #2496
• Implement hub callback priorities by @rosteen in #2530

Bug Fixes

• Remove viewer-specific code from gluestate and setgluestate on base Application class and fix a bug on restoring colormaps by @astrofrog in #2510
• Correct y limits in ProfileViewerState when min same as max by @pllim in #2513
• Fix an issue that caused the astropy table reader on Windows to behave differently to other platforms by @astrofrog in #2519
• Avoid double messaging on subset creation by @astrofrog in #2515

Other Changes

• Drop support for Python 3.8 and 3.9 by @CyclingNinja in #2514
• DEP: drop runtime dependency on setuptools by @neutrinoceros in #2511
• Move Python export tests from glue-qt to here by @astrofrog in #2524

New Contributors

• @iisakkirotko made their first contribution in #2520

Full Changelog: v1.21.1...v1.22.0