chore(release): bump version to 0.11.0

[kxzk]

TL;DR

The gem version changes to 0.11.0, and the changelog now describes the complete release contents and contributors.

Change diagram

flowchart LR
    accTitle: Langfuse Ruby 0.11.0 release flow
    accDescr: The release pull request updates main before a second release run tags the commit, builds the gem, and permits manual publishing.

    A["main at 0.10.1"] --> B["Release pull request"]
    B --> C["main at 0.11.0"]
    C --> D["Run release skill again"]
    D --> E["Tag v0.11.0"]
    E --> F["Build gem"]
    F --> G["Manual MFA publish"]

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Why

The current published gem is 0.10.1. Since that release, the SDK added data reads, synchronous scores, prompt variables, telemetry controls, and lifecycle fixes.

This pull request moves the unreleased notes into the 0.11.0 section. It adds pull request references and an Alan Marx contributor callout. Alan authored #98, #99, #100, and #102.

The pull request changes only CHANGELOG.md, Gemfile.lock, and lib/langfuse/version.rb. The tag and gem build must wait until this pull request merges. The merged commit must remain the head of main during finalization.

Checklist

• Has label
• Has linked issue
• Tests added for new behavior
• Docs updated (if user-facing)

Verification

I ran the complete repository check locally. RSpec passed 1,636 examples with 96.93% line coverage. RuboCop inspected 108 files and found no offenses.

bundle check confirmed that all dependencies are available. Release metadata checks confirmed version 0.11.0 in the version file and lockfile. The checks also confirmed the empty Unreleased section, comparison links, and Alan Marx callout.

I did not build or publish the gem. The release skill reserves the build for the merged release commit. RubyGems publishing requires a manual MFA-protected command.

I did not preview the rendered Mermaid diagram. GitHub must render the diagram in this pull request.

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Note

Low Risk
No application or library runtime code changes—only version and changelog/release documentation.

Overview
Prepares langfuse-rb 0.11.0 by bumping VERSION in lib/langfuse/version.rb and the local Gemfile.lock entry from 0.10.1 to 0.11.0.

CHANGELOG.md moves the former [Unreleased] notes into a dated [0.11.0] - 2026-08-19 section, adds an Alan Marx contributor note, rewrites bullets with PR references, adds a Documentation subsection, leaves [Unreleased] empty, and updates the compare links (v0.11.0...HEAD, v0.10.1...v0.11.0).

^{Reviewed by Cursor Bugbot for commit 57425c0. Bugbot is set up for automated code reviews on this repo. Configure here.}

[linear-code]

AAI-395