Merge upstream v0.4.2

.changeset/README.md

@@ -0,0 +1,8 @@
+# Changesets
+
+Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
+with multi-package repos, or single-package repos to help you version and publish your code. You can
+find the full documentation for it [in our repository](https://github.com/changesets/changesets)
+
+We have a quick list of common questions to get you started engaging with this project in
+[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)

.changeset/config.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "https://unpkg.com/@changesets/[email protected]/schema.json",
+  "changelog": ["@changesets/changelog-github", { "repo": "ethereum-optimism/optimism" }],
+  "commit": false,
+  "fixed": [],
+  "linked": [["@eth-optimism/contracts-bedrock", "@eth-optimism/contracts-ts"]],
+  "access": "public",
+  "baseBranch": "develop",
+  "updateInternalDependencies": "patch",
+  "privatePackages": { "version": true, "tag": true },
+  "ignore": []
+}

.changeset/neat-carrots-camp.md

@@ -0,0 +1,5 @@
+---
+'@eth-optimism/sdk': patch
+---
+
+Minor optimizations and improvements to FPAC functions.