Bump version in prep to release v6.6-rc3

[bdchatham]

Bumps version.json v6.6.0-rc2 → v6.6.0-rc3. On merge to release/v6.6, the UCI release-publish workflow cuts the v6.6.0-rc3 tag + GitHub release (auto-generated notes) and GoReleaser builds the seid binaries.

rc3 is cut from release/v6.6 HEAD, which includes #3743 — feat(cosmos): range-check Dec conversions and DecCoin validation (CON-369), the app-hash-breaking immunefi fix motivating this rc.

Mirrors Masih's rc2 bump (#3732): version.json only, authored directly on the release branch, labeled release (required for UCI to cut the tag on a non-default branch).

Ordering: merge the changelog backport #3746 first, then this — matching the rc1/rc2 sequence.

🤖 Generated with Claude Code

[cursor]

PR Summary

Low Risk
Single-field version bump only; no application or consensus logic changes in this PR.

Overview
Bumps version.json from v6.6.0-rc2 to v6.6.0-rc3 to prepare the next release candidate on release/v6.6.

Merging triggers the UCI release-publish workflow (tag, GitHub release, GoReleaser seid binaries). rc3 is intended to ship after the CON-369 Dec/DecCoin validation fix (#3743).

^{Reviewed by Cursor Bugbot for commit e8c07b3. Bugbot is set up for automated code reviews on this repo. Configure here.}

[github-actions]

The latest Buf updates on your PR. Results from workflow Buf / buf (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	✅ passed	Jul 10, 2026, 11:23 PM

[claude]

LGTM — single-line version bump v6.6.0-rc2 → v6.6.0-rc3 in version.json, mirroring the prior rc2 bump (#3732).

What was reviewed

• Verified the only change is the version string in version.json (no trailing newline preserved, matching the prior file).
• Confirmed the release label is present, which UCI requires to cut a tag on a non-default branch.
• No code, config, or workflow logic touched — nothing app-hash-breaking here.

Extended reasoning...

Overview

This PR modifies a single file (version.json) to bump the version string from v6.6.0-rc2 to v6.6.0-rc3. This is a release-candidate cut prep, mirroring the rc2 bump pattern (#3732).

Security risks

None. The diff contains no code, workflow, or configuration logic — only a version string used downstream by the UCI release-publish workflow to name the tag/release.

Level of scrutiny

Very low. Mechanical release-mechanics change of the type explicitly called out in the approval guidelines ("version bumps"). The PR is labeled non-app-hash-breaking and the underlying app-hash-breaking fix (#3743) has already landed on the release branch and been reviewed separately.

Other factors

The PR description clearly documents ordering (changelog backport #3746 first, then this) and follows the established rc1/rc2 precedent. The bug hunting system found no issues. No outstanding reviewer comments to address (the cursor[bot] comment is an auto-generated summary placeholder).

[github-actions]

Suggested version: v6.6.0-rc3

Comparing to: v6.6.0-rc2 (diff)

Changes in go.mod file(s):

diff --git a/go.mod b/go.mod
index 28aea16be..66bfbda91 100644
--- a/go.mod
+++ b/go.mod
@@ -28,7 +28,6 @@ require (
 	github.com/ethereum/go-ethereum v1.16.8
 	github.com/fortytw2/leaktest v1.3.0
 	github.com/go-git/go-git/v5 v5.17.2
-	github.com/go-kit/kit v0.13.0
 	github.com/gofrs/flock v0.13.0
 	github.com/gogo/gateway v1.1.0
 	github.com/gogo/protobuf v1.3.3
@@ -107,7 +106,6 @@ require (
 	google.golang.org/protobuf v1.36.11
 	gopkg.in/yaml.v2 v2.4.0
 	gopkg.in/yaml.v3 v3.0.1
-	k8s.io/component-base v0.35.0
 	pgregory.net/rapid v1.2.0
 )
 
@@ -123,6 +121,8 @@ require (
 	github.com/kevinburke/ssh_config v1.2.0 // indirect
 	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/moby/term v0.5.0 // indirect
+	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
 	github.com/pjbgf/sha1cd v0.3.2 // indirect
 	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
 	github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect
@@ -150,7 +150,7 @@ require (
 	github.com/cenkalti/backoff v2.2.1+incompatible // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash v1.1.0 // indirect
-	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0
 	github.com/cockroachdb/crlib v0.0.0-20241112164430-1264a2edc35b // indirect
 	github.com/cockroachdb/errors v1.12.0 // indirect
 	github.com/cockroachdb/fifo v0.0.0-20240606204812-0bbfbd93a7ce // indirect

gorelease says:

gorelease: create zip /home/runner/work/sei-chain/sei-chain: module source tree too large (max size is 524288000 bytes)

gocompat says:

Your branch is up to date with 'origin/main'.

Automatically created GitHub Release

A draft GitHub Release has been created.
It is going to be published when this PR is merged.
You can modify its' body to include any release notes you wish to include with the release.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 58.07%. Comparing base (66a196d) to head (e8c07b3).

Additional details and impacted files

@@               Coverage Diff                @@
##           release/v6.6    #3748      +/-   ##
================================================
- Coverage         58.96%   58.07%   -0.89%     
================================================
  Files              2225     2151      -74     
  Lines            183599   175031    -8568     
================================================
- Hits             108254   101657    -6597     
+ Misses            65627    64357    -1270     
+ Partials           9718     9017     -701     

Flag	Coverage Δ
sei-db	70.41% <ø> (ø)
sei-db-state-db	?

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see 74 files with indirect coverage changes

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