Next activation
none pending
current rules: proof v4, v1.2.x
Protocol upgrades and deadlines.
TensorCash changes fast: 7 mandatory upgrades since August. Miners on an old build keep their GPUs busy but their work stops counting. One page with every activation height, who must act and how far the network has moved.
Latest release
v1.2.3a-r2
2026-10-16 · git.tensorcash.org · 21 releases listed
Proof v4 reached 50% at
#27,400
≈ 81 h after pricing started; 100% only at the sunset block
Current tip
#32,105
20 Oct 2026, 04:58 UTC
How fast the network upgraded to proof v4
Most producers switched only in the last hours before the v3 sunset. An alert 24 h and 2 h before each activation would have saved work.
share of blocks with proof v4, per 25 blocks
Timeline
Newest first. "Block producers" = pool operators and solo miners; pool participants follow their pool.
| Date | Version | Type | Activation | Status | Who must act | What changes |
|---|---|---|---|---|---|---|
| 2026-10-16 | — | event | #31,528 | active | miners (optional) | Second mining model: Qwen3.8-27B (bf16), registered after 1.2.3. First block #31,528. Shares the difficulty adjustment with Qwen3-8B; its blocks carry 20× less difficulty. |
| 2026-10-16 | v1.2.3a-r2 | new release | — | see release notes | TensorCash 1.2.3a-r2 | |
| 2026-10-13 | v1.2.3 / 1.2.3a-r1 | mandatory | #31,400 | active | everyone | Multi-model verification, verifier failover, VDF checkpoints, multisequence detectors and tougher RED penalties. Own verifiers: 1.2.3a-r1. |
| 2026-09-23 | v1.2.2 | recommended | — | pools, verifiers | Faster pool Quick verification; experimental SGLang mining; security hardening. | |
| 2026-09-20 | v1.2.1 | mandatory | #27,615 | active | block producers | v3 sunset: proof v4 mandatory, AMBER/RED rules enforced, stricter verifier. |
| 2026-09-18 | supr-meow 0.7.0 | miner | — | suprnova / supr-meow users | Proof v4 support in the community miner. Older builds stop producing valid work at the v3 sunset. | |
| 2026-09-14 | v1.2.0 / a / b | mandatory | #26,950 | active | everyone | Proof v4 and the intelligence multiplier. Pricing starts at block 26,950 (moved from 26,925). |
| 2026-09-08 | — | deadline | — | block producers | StepBind grace ends. 71 of the last 135 blocks still carried legacy proofs that day. | |
| 2026-09-07 | v1.1.4b / c | fix | — | node operators | Stale Quick-verification verdicts no longer stall nodes; Windows builds. | |
| 2026-09-01 | v1.1.4a | mandatory | #24,870 | active | block producers | StepBind (TIP-0003). Legacy proofs accepted under a grace rule until 8 Sep 23:59 UTC. |
| 2026-08-31 | v1.1.4 | mandatory | #24,735 | active | pools, solo miners | Pad-slot zero binding (consensus). Pool participants unaffected. |
| 2026-08-30 | v1.1.3 | optional | — | miners, pools | Central VDF beacon, used automatically by the miner. | |
| 2026-08-27 | v1.1.2 → v1.1.2a | mandatory | #24,150 | active | block producers, nodes | Tighter proof validation; v1.1.2 withdrawn same day, replaced by v1.1.2a. |
| 2026-08-18 | v1.1.1 | verifier | — | verifiers, pools | Verifier fix: honest Qwen3.5 end-of-segment windows no longer read as RED. | |
| 2026-08-13 | — | event | #22,165 | active | — | Epoch 6: block reward 92.664 → 55.5984 TSC. |
| 2026-08-03 | v1.1.0 | mandatory | #20,440 | active | everyone | DAA v2 difficulty algorithm. Mandatory mainnet upgrade before block 20,440. |
Upgrade checklist
Pool miner
- Watch your pool's announcement: it upgrades first.
- Update the miner to the version your pool names (supr-meow ≥ 0.7.0 for proof v4).
- Keep the model cache; the first start after an upgrade may re-download.
- Check your address on the miner dashboard the next day: payouts should continue.
Solo miner / pool operator
- Upgrade bcore, TensorCash and your verifier before the activation height, not the estimated time.
- Verify release signatures at verify.tensorcash.org.
- After activation, confirm your next block shows the new proof version.
- Rejected blocks leave no trace on-chain: watch your own node logs.