My sincere apologies; my troll line was unwarranted. A few points:
1. The HARDWARE wasn't updated. I mean, maybe bits that don't matter much due to component sourcing, but the actual DSP power/speed wasn't changed, nor were the D/A and A/D convertors updated to the degree that any sonic differences were claimed.
2. The software CODE was updated. There were 2 big ones - an update of the core engine in 2.80 (2019) and the new cab engine in 3.50 (2022). With roughly 2x yearly updates, not only were new amps, FX, and features added, but DSP usage was optimized, allowing more FX than was originally possible. There was also an "increased oversampling" change made in firmware 3.1. Maybe these are what was meant by "the DSP was updated".
We can petition (and do all the time on The Gear Page - https://www.thegearpage.net/board/index.php?forums/digital-modeling-gear.53/), and as I have an LT and a Stomp, I'd LOVE to see new firmware for them. And I think we will; Eric at Line 6 has said so.
Unfortunately no details or ETA were given. That's normal; they never do that beforehand. But it's also never been 16 months since an update, so we're all skitchy. But Helix is still in the lineup and being sold, and apparently it's only an incremental effort to add new effects and models when they're developing them for the Stadium. The problem is ATM they're squashing Stadium bugs and developing things that WON'T port to Helix - Stadium-only features and Agoura models for amps that already exist in Helix. Once this flurry of activity calms down IMO we'll see some Helix updates, though not at the pace of years past. As others have said, it's a mature product and has a TON more features than when I bought it - and I thought it was great then.