collapse version 2.0.19

• fmatch(factor(NA), NA) now gives 1 instead of NA. Thanks @NicChr (#675).

• New developer focused vignette on developing with collapse.

• Fixed minor CRAN issues (#676, #702).

• Fixed bug with integer64 types in rowbind(). Thanks @arthurgailes for reporting and @aitap for providing a fix (#697).

• collapse now also has a Bluesky account at https://bsky.app/profile/rcollapse.bsky.social.