- Fix T4810: A key with only "C" capability cannot be selected as default key.
- Fix T4784: Remove referring a key by $AUTHKEYID, $ENCRKEYID, and $SIGNKEYID
- Apply a part of Tianjia Zhang patch to libgcrypt
- Improvement of selecting a private key by gpg (in case of: multiple subkeys and card):
- consider about more use cases:
- libgcrypt 1.8.5 build failures: T4818
- Gnuk 1.2.15 release
- Prepare FST-01SZ to distribute in Eurpoe