The news headline at the top says: Latest stable version of Bitcoin Core: 0.11.1 [Torrent] Upgrade now -- contains important security/DoS fixes!
Does this affect Mintcoin? Should Mintcoin wallets be patched regarding this same thing?
How are the wallet developments coming along?
The latest official release (v2.0.1.0) was built against the already patched version of miniupnpc so the security/DoS issues aren't a concern.
Development on the 2.1 wallet continues, we've been going through the past two years worth of BTC commits and bringing the MINT codebase up to date to include stability, security, expandability, and performance improvements. When everything is said and done, MINT will be among the few other coins to be on par with more recent versions of BTC (which MINT, and most altcoins) are a descendent of.
I can't give an accurate estimate of exactly WHEN the 2.1 release will be finished just yet, as both Supasonic and myself are having to work around real life obligations.