Phoenix (0.9.4.0)

Revert memory reduction
Revert stuck tx removal
Optimize sync within checkpoint zone
Update seed node list

Phoenix (0.9.1.1)

Fix diff command showing incorrect hash rate after hard fork 1
Small improvement to performance of daemon miner (1-2%)
Added backup seed node
Lower mining priority for anon-impairing (<2 mixins) tx
Various portability fixes (mostly from Monero)
Small reduction to memory usage (tens of MB)
Add IP blocking for misbehaving nodes (adapted from Boolberry)
Update checkpoint table

Phoenix (0.9.0.0)

Hard fork at block height 592000 changing PoW to Cryptnight-Lite and block target to 4 minutes
Enforce checkpoints on stored blockchain file (from Monero)
Triangular distribution on mixin selection (from Monero)
Mixin rng fix (from Boolberry)
Updated seed node
Tree-hash fix (from Monero)
Updated checkpoint table