Migrating Duende IdentityServer from v7.4 to v8.0: breaking changes, API replacements (ICache→HybridCache, IClock→TimeProvider), CancellationToken additions, EF migrations, and step-by-step upgrade guide.
Install
npx skills add DuendeSoftware/duende-skills --skill identityserver-upgrade-v7-to-v8npx skills add DuendeSoftware/duende-skills --skill identityserver-upgrade-v7-to-v8 -a claude-code -gnpx skills add DuendeSoftware/duende-skills --skill identityserver-upgrade-v7-to-v8 -a codex -ggemini skills install https://github.com/DuendeSoftware/duende-skills.git --path skills/identityserver-upgrade-v7-to-v8gh skill install DuendeSoftware/duende-skills identityserver-upgrade-v7-to-v8git clone --depth 1 https://github.com/DuendeSoftware/duende-skills /tmp/DuendeSoftware__duende-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/DuendeSoftware__duende-skills/skills/identityserver-upgrade-v7-to-v8 ~/.claude/skills/identityserver-upgrade-v7-to-v8 # Claude Code
cp -R /tmp/DuendeSoftware__duende-skills/skills/identityserver-upgrade-v7-to-v8 ~/.agents/skills/identityserver-upgrade-v7-to-v8 # Codex, Cursor, Gemini CLI, Copilot, OpenCode