diff --git a/reports/4.2.9/chart-category-comparison.png b/reports/4.2.9/chart-category-comparison.png
new file mode 100644
index 0000000..fb20e47
Binary files /dev/null and b/reports/4.2.9/chart-category-comparison.png differ
diff --git a/reports/4.2.9/chart-dashboard.png b/reports/4.2.9/chart-dashboard.png
new file mode 100644
index 0000000..e5cc43a
Binary files /dev/null and b/reports/4.2.9/chart-dashboard.png differ
diff --git a/reports/4.2.9/chart-duration-by-language.png b/reports/4.2.9/chart-duration-by-language.png
new file mode 100644
index 0000000..71024be
Binary files /dev/null and b/reports/4.2.9/chart-duration-by-language.png differ
diff --git a/reports/4.2.9/chart-duration-histogram.png b/reports/4.2.9/chart-duration-histogram.png
new file mode 100644
index 0000000..1a456c6
Binary files /dev/null and b/reports/4.2.9/chart-duration-histogram.png differ
diff --git a/reports/4.2.9/chart-queue-vs-execution.png b/reports/4.2.9/chart-queue-vs-execution.png
new file mode 100644
index 0000000..23b7e6c
Binary files /dev/null and b/reports/4.2.9/chart-queue-vs-execution.png differ
diff --git a/reports/4.2.9/chart-speed-leaders.png b/reports/4.2.9/chart-speed-leaders.png
new file mode 100644
index 0000000..2f2735f
Binary files /dev/null and b/reports/4.2.9/chart-speed-leaders.png differ
diff --git a/reports/4.2.9/perf.json b/reports/4.2.9/perf.json
new file mode 100644
index 0000000..ac38cb3
--- /dev/null
+++ b/reports/4.2.9/perf.json
@@ -0,0 +1,407 @@
+{
+    "tag": "4.2.9",
+    "generated_at": "2026-01-23T10:05:34Z",
+    "parent_pipeline_id": 12057,
+    "child_pipeline_id": 12060,
+    "summary": {
+        "total_tests": 645,
+        "passed_tests": 645,
+        "failed_tests": 0,
+        "total_languages": 43,
+        "passed_languages": 43,
+        "avg_duration_seconds": 107,
+        "max_duration_seconds": 279,
+        "min_duration_seconds": 19,
+        "slowest_language": "ruby",
+        "fastest_language": "d"
+    },
+    "languages": [
+  {
+    "language": "ruby",
+    "status": "Passed",
+    "queued_duration": 6.326948,
+    "started_at": "2026-01-23T09:58:27Z",
+    "updated_at": "2026-01-23T10:03:06Z",
+    "job_id": 29092,
+    "duration_seconds": 279
+  },
+  {
+    "language": "deno",
+    "status": "Passed",
+    "queued_duration": 65.212386,
+    "started_at": "2026-01-23T09:59:29Z",
+    "updated_at": "2026-01-23T10:03:42Z",
+    "job_id": 29107,
+    "duration_seconds": 253
+  },
+  {
+    "language": "rust",
+    "status": "Passed",
+    "queued_duration": 126.54301,
+    "started_at": "2026-01-23T10:00:29Z",
+    "updated_at": "2026-01-23T10:04:23Z",
+    "job_id": 29113,
+    "duration_seconds": 234
+  },
+  {
+    "language": "crystal",
+    "status": "Passed",
+    "queued_duration": 64.455629,
+    "started_at": "2026-01-23T09:59:27Z",
+    "updated_at": "2026-01-23T10:03:08Z",
+    "job_id": 29105,
+    "duration_seconds": 221
+  },
+  {
+    "language": "java",
+    "status": "Passed",
+    "queued_duration": 127.285032,
+    "started_at": "2026-01-23T10:00:30Z",
+    "updated_at": "2026-01-23T10:04:09Z",
+    "job_id": 29114,
+    "duration_seconds": 219
+  },
+  {
+    "language": "cpp",
+    "status": "Passed",
+    "queued_duration": 120.451453,
+    "started_at": "2026-01-23T10:00:21Z",
+    "updated_at": "2026-01-23T10:03:08Z",
+    "job_id": 29111,
+    "duration_seconds": 167
+  },
+  {
+    "language": "javascript",
+    "status": "Passed",
+    "queued_duration": 1.947271,
+    "started_at": "2026-01-23T09:58:22Z",
+    "updated_at": "2026-01-23T10:01:08Z",
+    "job_id": 29090,
+    "duration_seconds": 166
+  },
+  {
+    "language": "python",
+    "status": "Passed",
+    "queued_duration": 1.297771,
+    "started_at": "2026-01-23T09:58:22Z",
+    "updated_at": "2026-01-23T10:01:07Z",
+    "job_id": 29089,
+    "duration_seconds": 165
+  },
+  {
+    "language": "php",
+    "status": "Passed",
+    "queued_duration": 7.795789,
+    "started_at": "2026-01-23T09:58:29Z",
+    "updated_at": "2026-01-23T10:01:07Z",
+    "job_id": 29094,
+    "duration_seconds": 158
+  },
+  {
+    "language": "perl",
+    "status": "Passed",
+    "queued_duration": 7.446579,
+    "started_at": "2026-01-23T09:58:28Z",
+    "updated_at": "2026-01-23T10:01:06Z",
+    "job_id": 29093,
+    "duration_seconds": 158
+  },
+  {
+    "language": "zig",
+    "status": "Passed",
+    "queued_duration": 165.884393,
+    "started_at": "2026-01-23T10:01:09Z",
+    "updated_at": "2026-01-23T10:03:42Z",
+    "job_id": 29119,
+    "duration_seconds": 153
+  },
+  {
+    "language": "scheme",
+    "status": "Passed",
+    "queued_duration": 11.814258,
+    "started_at": "2026-01-23T09:58:34Z",
+    "updated_at": "2026-01-23T10:01:07Z",
+    "job_id": 29101,
+    "duration_seconds": 153
+  },
+  {
+    "language": "commonlisp",
+    "status": "Passed",
+    "queued_duration": 63.913243,
+    "started_at": "2026-01-23T09:59:26Z",
+    "updated_at": "2026-01-23T10:01:53Z",
+    "job_id": 29104,
+    "duration_seconds": 147
+  },
+  {
+    "language": "raku",
+    "status": "Passed",
+    "queued_duration": 71.864277,
+    "started_at": "2026-01-23T09:59:31Z",
+    "updated_at": "2026-01-23T10:01:52Z",
+    "job_id": 29109,
+    "duration_seconds": 141
+  },
+  {
+    "language": "powershell",
+    "status": "Passed",
+    "queued_duration": 26.433311,
+    "started_at": "2026-01-23T09:58:49Z",
+    "updated_at": "2026-01-23T10:01:04Z",
+    "job_id": 29102,
+    "duration_seconds": 135
+  },
+  {
+    "language": "typescript",
+    "status": "Passed",
+    "queued_duration": 2.665153,
+    "started_at": "2026-01-23T09:58:23Z",
+    "updated_at": "2026-01-23T10:00:21Z",
+    "job_id": 29091,
+    "duration_seconds": 118
+  },
+  {
+    "language": "ocaml",
+    "status": "Passed",
+    "queued_duration": 207.229716,
+    "started_at": "2026-01-23T10:01:47Z",
+    "updated_at": "2026-01-23T10:03:42Z",
+    "job_id": 29126,
+    "duration_seconds": 115
+  },
+  {
+    "language": "erlang",
+    "status": "Passed",
+    "queued_duration": 188.015742,
+    "started_at": "2026-01-23T10:01:57Z",
+    "updated_at": "2026-01-23T10:03:42Z",
+    "job_id": 29132,
+    "duration_seconds": 105
+  },
+  {
+    "language": "awk",
+    "status": "Passed",
+    "queued_duration": 70.275776,
+    "started_at": "2026-01-23T09:59:29Z",
+    "updated_at": "2026-01-23T10:01:08Z",
+    "job_id": 29108,
+    "duration_seconds": 99
+  },
+  {
+    "language": "haskell",
+    "status": "Passed",
+    "queued_duration": 187.953071,
+    "started_at": "2026-01-23T10:01:28Z",
+    "updated_at": "2026-01-23T10:03:06Z",
+    "job_id": 29125,
+    "duration_seconds": 98
+  },
+  {
+    "language": "groovy",
+    "status": "Passed",
+    "queued_duration": 65.116715,
+    "started_at": "2026-01-23T09:59:28Z",
+    "updated_at": "2026-01-23T10:01:06Z",
+    "job_id": 29106,
+    "duration_seconds": 98
+  },
+  {
+    "language": "go",
+    "status": "Passed",
+    "queued_duration": 121.402909,
+    "started_at": "2026-01-23T10:00:22Z",
+    "updated_at": "2026-01-23T10:01:54Z",
+    "job_id": 29112,
+    "duration_seconds": 92
+  },
+  {
+    "language": "kotlin",
+    "status": "Passed",
+    "queued_duration": 160.902907,
+    "started_at": "2026-01-23T10:01:04Z",
+    "updated_at": "2026-01-23T10:02:33Z",
+    "job_id": 29115,
+    "duration_seconds": 89
+  },
+  {
+    "language": "dart",
+    "status": "Passed",
+    "queued_duration": 172.483178,
+    "started_at": "2026-01-23T10:01:12Z",
+    "updated_at": "2026-01-23T10:02:34Z",
+    "job_id": 29123,
+    "duration_seconds": 82
+  },
+  {
+    "language": "fsharp",
+    "status": "Passed",
+    "queued_duration": 213.546325,
+    "started_at": "2026-01-23T10:01:53Z",
+    "updated_at": "2026-01-23T10:03:06Z",
+    "job_id": 29127,
+    "duration_seconds": 73
+  },
+  {
+    "language": "dotnet",
+    "status": "Passed",
+    "queued_duration": 214.573651,
+    "started_at": "2026-01-23T10:01:55Z",
+    "updated_at": "2026-01-23T10:03:06Z",
+    "job_id": 29129,
+    "duration_seconds": 71
+  },
+  {
+    "language": "prolog",
+    "status": "Passed",
+    "queued_duration": 215.153265,
+    "started_at": "2026-01-23T10:01:55Z",
+    "updated_at": "2026-01-23T10:03:04Z",
+    "job_id": 29130,
+    "duration_seconds": 69
+  },
+  {
+    "language": "forth",
+    "status": "Passed",
+    "queued_duration": 216.587287,
+    "started_at": "2026-01-23T10:01:56Z",
+    "updated_at": "2026-01-23T10:03:05Z",
+    "job_id": 29131,
+    "duration_seconds": 69
+  },
+  {
+    "language": "elixir",
+    "status": "Passed",
+    "queued_duration": 10.777275,
+    "started_at": "2026-01-23T09:58:32Z",
+    "updated_at": "2026-01-23T09:59:31Z",
+    "job_id": 29098,
+    "duration_seconds": 59
+  },
+  {
+    "language": "bash",
+    "status": "Passed",
+    "queued_duration": 9.592589,
+    "started_at": "2026-01-23T09:58:31Z",
+    "updated_at": "2026-01-23T09:59:29Z",
+    "job_id": 29096,
+    "duration_seconds": 58
+  },
+  {
+    "language": "lua",
+    "status": "Passed",
+    "queued_duration": 8.240926,
+    "started_at": "2026-01-23T09:58:30Z",
+    "updated_at": "2026-01-23T09:59:26Z",
+    "job_id": 29095,
+    "duration_seconds": 56
+  },
+  {
+    "language": "clojure",
+    "status": "Passed",
+    "queued_duration": 63.067493,
+    "started_at": "2026-01-23T09:59:25Z",
+    "updated_at": "2026-01-23T10:00:21Z",
+    "job_id": 29103,
+    "duration_seconds": 56
+  },
+  {
+    "language": "tcl",
+    "status": "Passed",
+    "queued_duration": 11.603923,
+    "started_at": "2026-01-23T09:58:33Z",
+    "updated_at": "2026-01-23T09:59:27Z",
+    "job_id": 29100,
+    "duration_seconds": 54
+  },
+  {
+    "language": "r",
+    "status": "Passed",
+    "queued_duration": 10.337757,
+    "started_at": "2026-01-23T09:58:32Z",
+    "updated_at": "2026-01-23T09:59:26Z",
+    "job_id": 29097,
+    "duration_seconds": 54
+  },
+  {
+    "language": "c",
+    "status": "Passed",
+    "queued_duration": 119.603493,
+    "started_at": "2026-01-23T10:00:20Z",
+    "updated_at": "2026-01-23T10:01:08Z",
+    "job_id": 29110,
+    "duration_seconds": 48
+  },
+  {
+    "language": "cobol",
+    "status": "Passed",
+    "queued_duration": 164.022284,
+    "started_at": "2026-01-23T10:01:07Z",
+    "updated_at": "2026-01-23T10:01:53Z",
+    "job_id": 29116,
+    "duration_seconds": 46
+  },
+  {
+    "language": "fortran",
+    "status": "Passed",
+    "queued_duration": 164.835607,
+    "started_at": "2026-01-23T10:01:08Z",
+    "updated_at": "2026-01-23T10:01:53Z",
+    "job_id": 29117,
+    "duration_seconds": 45
+  },
+  {
+    "language": "v",
+    "status": "Passed",
+    "queued_duration": 171.26956,
+    "started_at": "2026-01-23T10:01:11Z",
+    "updated_at": "2026-01-23T10:01:53Z",
+    "job_id": 29121,
+    "duration_seconds": 42
+  },
+  {
+    "language": "objc",
+    "status": "Passed",
+    "queued_duration": 171.839862,
+    "started_at": "2026-01-23T10:01:11Z",
+    "updated_at": "2026-01-23T10:01:53Z",
+    "job_id": 29122,
+    "duration_seconds": 42
+  },
+  {
+    "language": "nim",
+    "status": "Passed",
+    "queued_duration": 166.413462,
+    "started_at": "2026-01-23T10:01:10Z",
+    "updated_at": "2026-01-23T10:01:52Z",
+    "job_id": 29120,
+    "duration_seconds": 42
+  },
+  {
+    "language": "julia",
+    "status": "Passed",
+    "queued_duration": 173.014692,
+    "started_at": "2026-01-23T10:01:13Z",
+    "updated_at": "2026-01-23T10:01:53Z",
+    "job_id": 29124,
+    "duration_seconds": 40
+  },
+  {
+    "language": "csharp",
+    "status": "Passed",
+    "queued_duration": 214.031644,
+    "started_at": "2026-01-23T10:01:54Z",
+    "updated_at": "2026-01-23T10:02:34Z",
+    "job_id": 29128,
+    "duration_seconds": 40
+  },
+  {
+    "language": "d",
+    "status": "Passed",
+    "queued_duration": 165.579493,
+    "started_at": "2026-01-23T10:01:09Z",
+    "updated_at": "2026-01-23T10:01:28Z",
+    "job_id": 29118,
+    "duration_seconds": 19
+  }
+]
+}
diff --git a/reports/4.2.9/perf.md b/reports/4.2.9/perf.md
new file mode 100644
index 0000000..e68dcb4
--- /dev/null
+++ b/reports/4.2.9/perf.md
@@ -0,0 +1,146 @@
+# Performance Report: 4.2.9
+
+**Generated:** 2026-01-23T10:05:34Z
+**Pipeline:** [#12060](https://git.unturf.com/engineering/unturf/un-inception/-/pipelines/12060)
+
+## Summary
+
+| Metric | Value |
+|--------|-------|
+| Total Tests | 645 |
+| Passed | 645 |
+| Failed | 0 |
+| Pass Rate | 100.0% |
+| Languages | 43 |
+| Avg Duration | 107s |
+| Slowest | ruby (279s) |
+| Fastest | d (19s) |
+
+---
+
+## Test Duration by Language
+
+The primary performance metric - how long each language takes to run its full test suite (15 tests per language).
+
+![Duration by Language](chart-duration-by-language.png)
+
+**Key observations:**
+- **RUBY** and **DENO** are outliers at 90+ seconds
+- Most languages cluster between 20-40 seconds
+- Compiled languages (red) tend to be faster than interpreted (blue)
+- **D** is the fastest at 19 seconds
+
+---
+
+## Compiled vs Interpreted
+
+Comparing performance between compiled languages (C, Go, Rust, etc.) and interpreted languages (Python, Ruby, JavaScript, etc.).
+
+![Category Comparison](chart-category-comparison.png)
+
+**Findings:**
+- 20 compiled languages vs 22 interpreted
+- Compiled languages have lower median execution time
+- Interpreted languages show more variance (wider spread)
+- The white diamond marks the mean for each category
+
+---
+
+## Duration Distribution
+
+Histogram showing how test durations are distributed across all 43 languages.
+
+![Duration Histogram](chart-duration-histogram.png)
+
+**Distribution analysis:**
+- Most languages complete in 20-35 seconds (the peak)
+- Mean (green dashed) and median (blue dotted) are close together
+- Long tail on the right from slow outliers (ruby, deno)
+
+---
+
+## Speed Leaders
+
+Side-by-side comparison of the 10 slowest and 10 fastest languages.
+
+![Speed Leaders](chart-speed-leaders.png)
+
+**Slowest (left):** RUBY, DENO, RUST, CRYSTAL, JAVA
+**Fastest (right):** D, CSHARP, JULIA, NIM, OBJC
+
+---
+
+## Queue vs Execution Time
+
+Scatter plot showing the relationship between CI queue wait time and actual test execution time.
+
+![Queue vs Execution](chart-queue-vs-execution.png)
+
+**Notes:**
+- Queue time is how long the job waited for a runner
+- Most jobs had similar queue times (clustered vertically)
+- Outliers labeled - ruby and deno took longest to execute regardless of queue time
+
+---
+
+## Dashboard
+
+Summary dashboard combining key metrics and visualizations.
+
+![Dashboard](chart-dashboard.png)
+
+---
+
+## Raw Data
+
+### Per-Language Performance
+
+| Language | Status | Duration |
+|----------|--------|----------|
+| ruby | Passed | 279s |
+| deno | Passed | 253s |
+| rust | Passed | 234s |
+| crystal | Passed | 221s |
+| java | Passed | 219s |
+| cpp | Passed | 167s |
+| javascript | Passed | 166s |
+| python | Passed | 165s |
+| php | Passed | 158s |
+| perl | Passed | 158s |
+| zig | Passed | 153s |
+| scheme | Passed | 153s |
+| commonlisp | Passed | 147s |
+| raku | Passed | 141s |
+| powershell | Passed | 135s |
+| typescript | Passed | 118s |
+| ocaml | Passed | 115s |
+| erlang | Passed | 105s |
+| awk | Passed | 99s |
+| haskell | Passed | 98s |
+| groovy | Passed | 98s |
+| go | Passed | 92s |
+| kotlin | Passed | 89s |
+| dart | Passed | 82s |
+| fsharp | Passed | 73s |
+| dotnet | Passed | 71s |
+| prolog | Passed | 69s |
+| forth | Passed | 69s |
+| elixir | Passed | 59s |
+| bash | Passed | 58s |
+| lua | Passed | 56s |
+| clojure | Passed | 56s |
+| tcl | Passed | 54s |
+| r | Passed | 54s |
+| c | Passed | 48s |
+| cobol | Passed | 46s |
+| fortran | Passed | 45s |
+| v | Passed | 42s |
+| objc | Passed | 42s |
+| nim | Passed | 42s |
+| julia | Passed | 40s |
+| csharp | Passed | 40s |
+| d | Passed | 19s |
+
+---
+
+*Report generated by UN Inception CI pipeline*
diff --git a/reports/PERFORMANCE-HISTORY.md b/reports/PERFORMANCE-HISTORY.md
index ffc5172..0787283 100644
--- a/reports/PERFORMANCE-HISTORY.md
+++ b/reports/PERFORMANCE-HISTORY.md
@@ -13,3 +13,4 @@ Tracking compile and test execution times across releases.
 | 4.2.6 | 2026-01-19 | 642 | 100.0% | 54s | haskell | awk |
 | 4.2.7 | 2026-01-23 | 631 | 99.8% | 117s | typescript | dotnet |
 | 4.2.8 | 2026-01-23 | 645 | 99.8% | 111s | kotlin | fortran |
+| 4.2.9 | 2026-01-23 | 645 | 100.0% | 107s | ruby | d |