Tags added to all new parts (and some modified parts, like the relay antennas which otherwise lack tags of their own). We can search the engines by nickname now!
The Size 0 heatshield is no longer a separate part, but a reskin of the stock size 0. (Their names were colliding anyway.)
Engines with extra top nodes now use ModuleStructuralNode and ModuleStructuralNodeToggle, so if we're having trouble getting the Poodle on the right node (for example) we can turn off the upper node in the editor.
Solar panel configs corrected to generate power and not spam exceptions (may require one-time retraction/redeployment to fix existing vessels).
Antennas all work now, with ranges and properly-referenced transforms in their configurations.
The fixed antenna models are used to replace the relay antenna models.
Per user feedback, Ven's 88-88 model is now a separate part, the 88-88-V, rather than reskinning the stock 88-88. Because it lacks the cosmetic fairing, it is slightly lighter and cheaper.
The Communotron-32 dish is now called the HG-20, and is a "big brother" to the HG-5 relay with 4x the power (20M).
The "old" fixed antenna parts (88-X, DTS-M5, DTS-M7, whose models I'm now using for the relays) are now unresearchable and unbuildable, so they are ready to be deprecated in a future version (but won't break any existing vessels just yet).
The MK2VA pod has a built-in antenna like other capsules.
Pruners updated accordingly.
RCS thrusters (including the builtin thrusters on the Mk1-2 pod) have the new sound effects.