PR #1614: tar: new option "--no-read-sparse"
PR #1503: RAR reader: filter support
PR #1585: RAR5 reader: self-extracting archive support

PR #1567: tar: threads support for zstd (#1567)
PR #1518: ZIP reader: zstd decompression support

PR #1491, #1492, #1493, CVE-2021-36976:
  fix invalid memory access and out of bounds read in RAR5 reader
PR #1566, #1618, CVE-2021-31566:
  extended fix for following symlinks when processing the fixup list

PR #1620: tar: respect "--ignore-zeros" in c, r and u modes
PR #1625: reduced size of application binaries