v16.0.0-rc1

This is the first release candidate of v16.0.0 actors, that will power Filecoin nv25.

What's Changed

• chore(mcopy): add contract with test by @rvagg in #1583
• fix(market): load proposals and states roots once in on_miner_sectors_terminate by @Abhay-2811 in #1585
• chore: update multihash & cid by @Stebalien in #1589
• refactor: avoid tricky error downcasting in the Map by @Stebalien in #1590
• chore: release 16.0.0-dev by @rvagg in #1591

New Contributors

• @Abhay-2811 made their first contribution in #1585

Full Changelog: v15.0.0...v16.0.0-rc1