#965 - enable various optimizations when using modern curl
#1002 - allow SSE-C keys to have NUL bytes
#1008 - add session token support
#1039 - allow large files on 32-bit systems like Raspberry Pi
#1049 - fix data corruption when external modification changes a cached object
#1063 - fix data corruption when opening a second fd to an unflushed file
#1066 - fix clock skew errors when writing large files
#1081 - allow concurrent metadata queries during data operations
#1098 - use server-side copy for partially modified files
#1107 - #1108 - fix multiple concurrency issues
#1199 - add requester_pays support
#1209 - add symlink cache
#1224 - add intelligent_ia storage tier

Thanks @ahuarte47, @Andrei94, @arkamar, @bbxiao1, @bryceml, @jaygooby, @larsch, @liuyongqing, @michallula, @mikelolasagasti, and @rallister for opening pull requests to improve s3fs!