thomashoneyman · Nov 14, 2026 · Nov 14, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -11,6 +11,9 @@ New features:
 Bugfixes:
 
 Other improvements:
+- Bump PureScript to `0.15.17`, which adds attached `derive` clauses on `data` and `newtype` declarations (#324 by @thomashoneyman)
+- Bump the Stackage resolver from `lts-20.26` to `lts-23.18` (GHC 9.2.8 → 9.8.4) to match `purescript-0.15.17` (#324 by @thomashoneyman)
+- Update to registry package set `82.1.0`, excluding the new packages that cannot run in the playground (#324 by @thomashoneyman)
 
 ## [v2026-07-05.2](https://github.com/purescript/trypurescript/releases/tag/v2026-07-05.2)
 

diff --git a/client/package.json b/client/package.json
@@ -17,7 +17,7 @@
   "devDependencies": {
     "esbuild": "^0.14.43",
     "http-server": "^14.1.0",
-    "purescript": "^0.15.15",
+    "purescript": "^0.15.17",
     "purescript-psa": "^0.8.2",
     "rimraf": "^2.5.4",
     "spago": "^1.0.4"

diff --git a/client/src/Try/SharedConfig.purs b/client/src/Try/SharedConfig.purs
@@ -6,14 +6,14 @@ module Try.SharedConfig where
 import Prelude
 
 pursVersion :: String
-pursVersion = "v0.15.15"
+pursVersion = "v0.15.17"
 
 pursReleaseUrl :: String
 pursReleaseUrl = "https://github.com/purescript/purescript/releases/tag/" <> pursVersion
 
 -- | The registry package set version used by `staging/spago.yaml`.
 packageSetVersion :: String
-packageSetVersion = "77.10.2"
+packageSetVersion = "82.1.0"
 
 packageSetPackageJsonUrl :: String
 packageSetPackageJsonUrl = "https://github.com/purescript/registry/blob/main/package-sets/" <> packageSetVersion <> ".json"
diff --git a/server/Main.hs b/server/Main.hs
@@ -7,7 +7,6 @@
 module Main (main) where
 
 import           Control.Monad (foldM)
-import           Control.Monad.IO.Class (liftIO)
 import qualified Control.Monad.State as State
 import           Control.Monad.Trans (lift)
 import           Control.Monad.Trans.Except (ExceptT(..), runExceptT)
@@ -168,7 +167,7 @@ server allModuleNames externs initNamesEnv initEnv port = do
           Scotty.json $ A.object [ "js" .= comp, "warnings" .= warnings ]
 
     get "/search" $ do
-      query <- param "q"
+      query <- queryParam "q"
       Scotty.setHeader "Access-Control-Allow-Origin" "*"
       Scotty.setHeader "Content-Type" "application/json"
       case tryParseType query of

diff --git a/stack.yaml b/stack.yaml
@@ -1,19 +1,12 @@
-resolver: lts-20.26
+resolver: lts-23.18
 packages:
   - "."
 
 extra-deps:
-  - purescript-0.15.15
+  - purescript-0.15.17
+  # These match the extra-deps in purescript-0.15.17's own stack.yaml
   - language-javascript-0.7.0.0
-  - process-1.6.13.1
-  # The Cabal library is not in Stackage
-  - Cabal-3.6.3.0
-  # Protolude is not in the resolver snapshot; 0.3.3 (not 0.3.1) is needed
-  # for compatibility with the bytestring version in lts-20.26
-  - protolude-0.3.3
-  # purescript pins happy ==1.20.0, but lts-20.26 ships happy-1.20.1.1
-  - happy-1.20.0
-
-flags:
-  these:
-    assoc: false
+  - bower-json-1.1.0.0
+  - aeson-better-errors-0.9.1.3
+  - github: purescript/cheapskate
+    commit: 633c69024e061ad956f1aecfc137fb99a7a7a20b
diff --git a/stack.yaml.lock b/stack.yaml.lock
@@ -5,12 +5,12 @@
 
 packages:
 - completed:
-    hackage: purescript-0.15.15@sha256:8e2a2452b66e29dbfa8269c523487f882c7b94aa71766b06be7e51da4dc85035,21429
+    hackage: purescript-0.15.17@sha256:425c45b03ade7f357fa64b9e62d64120cad0360f8249de3fd336d15dd57da681,21699
     pantry-tree:
-      sha256: c70747a772ab844b7e9b86cfc57a9b22001652ad7bec457eb274df29b7110e17
-      size: 159334
+      sha256: 06e8a2032f48f20fef5bb8ea2e5a6c8c7395d37b2d7e25190d0f15d3d5f644fd
+      size: 147330
   original:
-    hackage: purescript-0.15.15
+    hackage: purescript-0.15.17
 - completed:
     hackage: language-javascript-0.7.0.0@sha256:3eab0262b8ac5621936a4beab6a0f97d0e00a63455a8b0e3ac1547b4088dae7d,3898
     pantry-tree:
@@ -19,36 +19,33 @@ packages:
   original:
     hackage: language-javascript-0.7.0.0
 - completed:
-    hackage: process-1.6.13.1@sha256:c8bb8b7c993ff72d771381b3b56852dd154bce51880a24789c11f57b0688d353,2963
+    hackage: bower-json-1.1.0.0@sha256:a136aaca67bf0d15c336f5864f7e9d40ebe046ca2cb4b25bc4895617ea35f9f6,1864
     pantry-tree:
-      sha256: 58117b15fa330c79b3bca6b29c65f815e45840f79cc0915d3434f25e54ac8fa5
-      size: 1543
+      sha256: 3acd48e7012f246ad44c7c17cd6340362b1dc448c1d93156280814e76d9e0589
+      size: 419
   original:
-    hackage: process-1.6.13.1
+    hackage: bower-json-1.1.0.0
 - completed:
-    hackage: Cabal-3.6.3.0@sha256:ff97c442b0c679c1c9876acd15f73ac4f602b973c45bde42b43ec28265ee48f4,12459
+    hackage: aeson-better-errors-0.9.1.3@sha256:1bfdda3982368cafc7317b9f0c1f7267a6b0bbac9515ae1fad37f2b19178f567,2071
     pantry-tree:
-      sha256: b250a53bdb56844f047a2927833bb565b936a289abfa85dfc2a63148d776368a
-      size: 19757
+      sha256: 1c14247866dfb8052506c179e4725b8a7ce1472a4fb227d61576d862d9494551
+      size: 492
   original:
-    hackage: Cabal-3.6.3.0
+    hackage: aeson-better-errors-0.9.1.3
 - completed:
-    hackage: protolude-0.3.3@sha256:0106615f6fe08de16fe512852c728797db17374d36b4a4ec8187563e924b2439,2261
+    name: cheapskate
     pantry-tree:
-      sha256: 174c107f3c3af1dc23330ff4431445830aac4b4fdba326e3e654eb491d6e9ca6
-      size: 1594
+      sha256: b130a35ad29a61ac64c2d29bb09309ddf07b139342c67ef01ccc59ad4167d529
+      size: 12069
+    sha256: 2b495e2b6d571c33b91ebb76c1b7fe9c9b56ff90ca0804106a3260f2bbdc9a9a
+    size: 62489
+    url: https://github.com/purescript/cheapskate/archive/633c69024e061ad956f1aecfc137fb99a7a7a20b.tar.gz
+    version: 0.1.1.2
   original:
-    hackage: protolude-0.3.3
-- completed:
-    hackage: happy-1.20.0@sha256:5d47dc221a9fe964e36aaaa2e1ab7e8f085a225fd6528d6eff310b92360bbe99,5732
-    pantry-tree:
-      sha256: ff2e7df7cfe8746eedc6f69c225fa8c899c26d28f1c4964eeb00a5d757d30351
-      size: 8749
-  original:
-    hackage: happy-1.20.0
+    url: https://github.com/purescript/cheapskate/archive/633c69024e061ad956f1aecfc137fb99a7a7a20b.tar.gz
 snapshots:
 - completed:
-    sha256: 5a59b2a405b3aba3c00188453be172b85893cab8ebc352b1ef58b0eae5d248a2
-    size: 650475
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/20/26.yaml
-  original: lts-20.26
+    sha256: d133abe75e408a407cce3f032c96ac1bbadf474a93b5156ebf4135b53382d56b
+    size: 683827
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/23/18.yaml
+  original: lts-23.18
diff --git a/staging/excluded-packages.txt b/staging/excluded-packages.txt
@@ -1,4 +1,4 @@
-# Packages excluded from the Try PureScript package set (registry 77.10.2).
+# Packages excluded from the Try PureScript package set (registry 82.1.0).
 #
 # Criterion: the package cannot execute in the playground. Its foreign modules
 # (or those of a dependency) import bare JS specifiers that are not shimmed by
@@ -19,6 +19,7 @@ ace	unshimmed imports: ace-builds, ace/anchor, ace/background_tokenizer, ace/doc
 address-rfc2821	unshimmed imports: address-rfc2821
 affjax-node	unshimmed imports: url, xhr2
 axon	unshimmed imports: bun, node:http, node:net, node:stream, stream
+baskerville-mycroft	depends on excluded: mycroft
 benchlib	depends on excluded: node-buffer, node-fs, node-path, node-process
 blessed	unshimmed imports: @shamansir/everblessed, blessed, fs, path, reblessed, terminal-size, url, util
 cbor-stream	unshimmed imports: cbor-x
@@ -38,7 +39,7 @@ elmish-enzyme	unshimmed imports: enzyme
 elmish-hooks	unshimmed imports: stacktrace-parser
 elmish-html	depends on excluded: elmish
 elmish-testing-library	unshimmed imports: @happy-dom/global-registrator, react-dom/test-utils.js
-elmish-time-machine	depends on excluded: elmish, elmish-hooks, elmish-html
+env	depends on excluded: node-process
 environment	depends on excluded: node-process
 express	unshimmed imports: cookie-parser, express, http, https
 ezfetch	unshimmed imports: buffer, stream
@@ -69,13 +70,16 @@ meowclient	unshimmed imports: keys-converter, meowclient
 milkdown	unshimmed imports: @milkdown/crepe, @milkdown/kit/core, @milkdown/kit/utils
 milkis	unshimmed imports: node-fetch
 motion	unshimmed imports: motion/react, motion/react-m
+mycroft	unshimmed imports: node:child_process
+mycroft-z3-wasm	unshimmed imports: z3-solver
 mysql	unshimmed imports: mysql
 n3	unshimmed imports: n3
 nanoid	unshimmed imports: nanoid
 next-purs-rsc	unshimmed imports: next/cache, next/dynamic, next/font/google, next/font/local, next/headers, next/image, next/link, next/navigation, next/og, next/script, next/server, next/web-vitals
 nextjs	unshimmed imports: next/document, next/head, next/image.js, next/link, next/navigation, next/script, swr
 nextui	unshimmed imports: @nextui-org/react, next-themes
 node-buffer	unshimmed imports: node:buffer, util
+node-buffer-blob	unshimmed imports: buffer
 node-child-process	unshimmed imports: node:child_process
 node-event-emitter	unshimmed imports: node:events
 node-execa	unshimmed imports: process
@@ -89,6 +93,7 @@ node-os	unshimmed imports: node:os, node:util
 node-path	unshimmed imports: node:path
 node-process	unshimmed imports: process
 node-readline	unshimmed imports: node:readline
+node-sqlite	unshimmed imports: node:sqlite
 node-sqlite3	unshimmed imports: sqlite3
 node-stream-pipes	unshimmed imports: stream
 node-streams	unshimmed imports: node:stream
@@ -159,7 +164,9 @@ yoga-pino	unshimmed imports: @opentelemetry/api-logs, pino
 yoga-postgres	unshimmed imports: pg
 yoga-react-native	unshimmed imports: react-native, react-native-fs, react-native-macos, twrnc
 yoga-redis	unshimmed imports: ioredis
+yoga-scylladb	unshimmed imports: cassandra-driver
 yoga-shadcn	unshimmed imports: cmdk, embla-carousel-react, input-otp, radix-ui, react-day-picker, react-resizable-panels, sonner, vaul
 yoga-sqlite	unshimmed imports: @libsql/client
+yoga-sqlite-om	depends on excluded: yoga-sqlite
 yoga-test-docker	unshimmed imports: child_process
 z3	unshimmed imports: z3-solver