Ergo protocol client 3.3.5. It includes following PRs:
#1224 : inactive connections being dropped, last seen message time added to /info
#1223 : Consider mempool if minConfirmations==-1 in /wallet/boxes and /wallet/boxes/unspent
#1213 : Fix for #1165 : double-spending transactions not allowed in mempool (with RBF replacement strategy)
#1220 : Fix for panel issues during wallet init/restore (issue #1212 )
For update from 3.2.x and 3.3.x (where x < 4), see migration notes in https://github.com/ergoplatform/ergo/releases/tag/v3.3.0 and https://github.com/ergoplatform/ergo/releases/tag/v3.3.4