docs(changelog): v6.8.0 release notes

[bmadcode]

Summary

Adds the v6.8.0 release notes covering 18 commits since v6.7.1.

Headline leads with the new planning shapes: bmad-ux (two-spine DESIGN.md + EXPERIENCE.md) and bmad-spec (five-field kernel distiller), both extending the streamlined Create/Update/Validate + Fast/Coaching template that bmad-prd and bmad-product-brief set in v6.7.0.

Also covered: Web Bundles v6 shelf for Gemini Gems and ChatGPT Custom GPTs (#2421, #2423, #2424, #2425), bmad-automator on next, bmad-method-ui community alpha, 19 new advanced-elicitation techniques (#2062), docs sidebar-order validator (#2409), and a long tail of installer and skill activation fixes.

Breaking changes

• bmad-create-ux-design replaced by bmad-ux (single design.md spine → DESIGN.md + EXPERIENCE.md)
• bmad-distillator retired, superseded by bmad-spec (promoted to core)

Both handled automatically via removals.txt on installer update.

Test plan

• Render CHANGELOG.md and confirm v6.8.0 entry sits above v6.7.1 with intact formatting
• Confirm all PR references (feat: expand advanced elicitation methods with 19 new techniques #2062, fix: resolve default branch explicitly when updating shallow-cloned custom modules #2332, fix: support nested group paths in SSH Git URLs #2379, fix(skills): strengthen activation guardrails to prevent LLM short-circuiting #2398, Fix stale custom-source redeploys on quick-update #2399, fix: keep brainstorming idea flow collaborative #2402, fix: capture dev story baseline commits #2403, feat(docs): Add sidebar order validator for doc frontmatter #2409, docs(en): add bmad-investigate / IN trigger to agent tables #2410, fix(installer): preserve user_name and user-scoped answers across reinstalls #2411, refactor(bmad-ux): spine-based UX skill (DESIGN.md + EXPERIENCE.md) #2413, fix: write customization JSON as UTF-8 #2414, feat(bmad-spec): introduce Spec kernel distiller skill #2417, feat(web-bundles): bring back V4 web bundles for V6 #2421, fix(bmm-skills): define project_context in dev-story, sprint-planning, sprint-status #2422, docs(web-bundles): fix install framing, add update/customize guidance #2423, feat(web-bundles): release packager + manifest for bmadcode.com/web-bundles/ #2424, docs: route all web-bundles install traffic to bmadcode.com/web-bundles #2425) resolve
• After merge, dispatch publish.yaml with channel=latest, bump=minor to tag v6.8.0

[augmentcode]

🤖 Augment PR Summary

Summary: This PR updates the project changelog with the v6.8.0 release notes, covering changes since v6.7.1.

Changes:

• Documented new planning “shapes” including bmad-ux (DESIGN.md + EXPERIENCE.md) and bmad-spec (five-field kernel distiller)
• Captured Web Bundles v6 shelf updates for Gemini Gems and ChatGPT Custom GPTs
• Noted new/updated tooling and releases such as bmad-automator on next and the bmad-method-ui community alpha
• Included additional feature and maintenance notes (advanced elicitation techniques, sidebar-order validator, installer/skill activation fixes)

Technical Notes: Calls out breaking changes (bmad-create-ux-design → bmad-ux, bmad-distillator → bmad-spec) and states migration is handled via removals.txt during installer updates.

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[augmentcode]

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