diff --git a/Library/Homebrew/formula_creator.rb b/Library/Homebrew/formula_creator.rb
index db44f2ea4e..15d295597b 100644
--- a/Library/Homebrew/formula_creator.rb
+++ b/Library/Homebrew/formula_creator.rb
@@ -23,31 +23,9 @@ module Homebrew
     }
     def initialize(url:, name: nil, version: nil, tap: nil, mode: nil, license: nil, fetch: false, head: false)
       @url = url
-
-      if name.blank?
-        stem = Pathname.new(url).stem
-        name = if stem.start_with?("index.cgi") && stem.include?("=")
-          # special cases first
-          # gitweb URLs e.g. http://www.codesrc.com/gitweb/index.cgi?p=libzipper.git;a=summary
-          stem.rpartition("=").last
-        elsif url =~ %r{github\.com/\S+/(\S+)/(archive|releases)/}
-          # e.g. https://github.com/stella-emu/stella/releases/download/6.7/stella-6.7-src.tar.xz
-          T.must(Regexp.last_match(1))
-        else
-          # e.g. http://digit-labs.org/files/tools/synscan/releases/synscan-5.02.tar.gz
-          pathver = Version.parse(stem).to_s
-          stem.sub(/[-_.]?#{Regexp.escape(pathver)}$/, "")
-        end
-        odebug "name from url: #{name}"
-      end
-      @name = T.let(name, String)
-
-      version = if version.present?
-        Version.new(version)
-      else
-        Version.detect(url)
-      end
-      @version = T.let(version, Version)
+      @mode = mode
+      @license = license
+      @fetch = fetch
 
       tap = if tap.blank?
         CoreTap.instance
@@ -56,23 +34,58 @@ module Homebrew
       end
       @tap = T.let(tap, Tap)
 
-      @mode = T.let(mode.presence, T.nilable(Symbol))
-      @license = T.let(license.presence, T.nilable(String))
-      @fetch = fetch
-
-      case url
-      when %r{github\.com/(\S+)/(\S+)\.git}
-        head = true
-        user = Regexp.last_match(1)
-        repository = Regexp.last_match(2)
-        github = GitHub.repository(user, repository) if fetch
-      when %r{github\.com/(\S+)/(\S+)/(archive|releases)/}
-        user = Regexp.last_match(1)
-        repository = Regexp.last_match(2)
-        github = GitHub.repository(user, repository) if fetch
+      if (match_github = url.match %r{github\.com/(?<user>[^/]+)/(?<repo>[^/]+).*})
+        user = T.must(match_github[:user])
+        repository = T.must(match_github[:repo])
+        if repository.end_with?(".git")
+          # e.g. https://github.com/Homebrew/brew.git
+          repository.delete_suffix!(".git")
+          head = true
+        end
+        odebug "github: #{user} #{repository} head:#{head}"
+        if name.blank?
+          name = repository
+          odebug "name from github: #{name}"
+        end
+      elsif name.blank?
+        stem = Pathname.new(url).stem
+        name = if stem.start_with?("index.cgi") && stem.include?("=")
+          # special cases first
+          # gitweb URLs e.g. http://www.codesrc.com/gitweb/index.cgi?p=libzipper.git;a=summary
+          stem.rpartition("=").last
+        else
+          # e.g. http://digit-labs.org/files/tools/synscan/releases/synscan-5.02.tar.gz
+          pathver = Version.parse(stem).to_s
+          stem.sub(/[-_.]?#{Regexp.escape(pathver)}$/, "")
+        end
+        odebug "name from url: #{name}"
       end
+      @name = T.let(name, String)
       @head = head
+
+      if version.present?
+        version = Version.new(version)
+        odebug "version from user: #{version}"
+      else
+        version = Version.detect(url)
+        odebug "version from url: #{version}"
+      end
+
+      if fetch && user && repository
+        github = GitHub.repository(user, repository)
+
+        if version.null? && !head
+          begin
+            latest_release = GitHub.get_latest_release(user, repository)
+            version = Version.new(latest_release.fetch("tag_name"))
+            odebug "github: version from latest_release: #{version}"
+          rescue GitHub::API::HTTPNotFoundError
+            odebug "github: latest_release lookup failed: #{url}"
+          end
+        end
+      end
       @github = T.let(github, T.untyped)
+      @version = T.let(version, Version)
 
       @sha256 = T.let(nil, T.nilable(String))
       @desc = T.let(nil, T.nilable(String))
diff --git a/Library/Homebrew/test/formula_creator_spec.rb b/Library/Homebrew/test/formula_creator_spec.rb
index a5844829b1..b7d6d20077 100644
--- a/Library/Homebrew/test/formula_creator_spec.rb
+++ b/Library/Homebrew/test/formula_creator_spec.rb
@@ -5,55 +5,71 @@ require "formula_creator"
 RSpec.describe Homebrew::FormulaCreator do
   describe ".new" do
     tests = {
-      "generic tarball URL":       {
-        url:     "http://digit-labs.org/files/tools/synscan/releases/synscan-5.02.tar.gz",
-        name:    "synscan",
-        version: "5.02",
+      "generic tarball URL":             {
+        url:              "http://digit-labs.org/files/tools/synscan/releases/synscan-5.02.tar.gz",
+        expected_name:    "synscan",
+        expected_version: "5.02",
       },
-      "gitweb URL":                {
-        url:  "http://www.codesrc.com/gitweb/index.cgi?p=libzipper.git;a=summary",
-        name: "libzipper",
+      "gitweb URL":                      {
+        url:           "http://www.codesrc.com/gitweb/index.cgi?p=libzipper.git;a=summary",
+        expected_name: "libzipper",
       },
-      "GitHub repo URL with .git": {
-        url:         "https://github.com/Homebrew/brew.git",
-        name:        "brew",
-        head:        true,
-        fetch:       true,
-        github_user: "Homebrew",
-        github_repo: "brew",
+      "GitHub repository URL with .git": {
+        url:                    "https://github.com/Homebrew/brew.git",
+        fetch:                  true,
+        github_user_repository: ["Homebrew", "brew"],
+        expected_name:          "brew",
+        expected_head:          true,
       },
-      "GitHub archive URL":        {
-        url:         "https://github.com/Homebrew/brew/archive/4.5.7.tar.gz",
-        name:        "brew",
-        version:     "4.5.7",
-        fetch:       true,
-        github_user: "Homebrew",
-        github_repo: "brew",
+      "GitHub archive URL":              {
+        url:                    "https://github.com/Homebrew/brew/archive/4.5.7.tar.gz",
+        fetch:                  true,
+        github_user_repository: ["Homebrew", "brew"],
+        expected_name:          "brew",
+        expected_version:       "4.5.7",
       },
-      "GitHub releases URL":       {
-        url:         "https://github.com/stella-emu/stella/releases/download/6.7/stella-6.7-src.tar.xz",
-        name:        "stella",
-        version:     "6.7",
-        fetch:       true,
-        github_user: "stella-emu",
-        github_repo: "stella",
+      "GitHub releases URL":             {
+        url:                    "https://github.com/stella-emu/stella/releases/download/6.7/stella-6.7-src.tar.xz",
+        fetch:                  true,
+        github_user_repository: ["stella-emu", "stella"],
+        expected_name:          "stella",
+        expected_version:       "6.7",
+      },
+      "GitHub latest release":           {
+        url:                    "https://github.com/buildpacks/pack",
+        fetch:                  true,
+        github_user_repository: ["buildpacks", "pack"],
+        latest_release:         { "tag_name" => "v0.37.0" },
+        expected_name:          "pack",
+        expected_version:       "v0.37.0",
+      },
+      "GitHub URL with name override":   {
+        url:           "https://github.com/RooVetGit/Roo-Code",
+        name:          "roo",
+        expected_name: "roo",
       },
     }
 
     tests.each do |description, test|
       it "parses #{description}" do
         fetch = test.fetch(:fetch, false)
-        allow(GitHub).to receive(:repository).with(test.fetch(:github_user), test.fetch(:github_repo)) if fetch
+        if fetch
+          github_user_repository = test.fetch(:github_user_repository)
+          allow(GitHub).to receive(:repository).with(*github_user_repository)
+          if (latest_release = test[:latest_release])
+            expect(GitHub).to receive(:get_latest_release).with(*github_user_repository).and_return(latest_release)
+          end
+        end
 
-        formula_creator = described_class.new(url: test.fetch(:url), fetch:)
+        formula_creator = described_class.new(url: test.fetch(:url), name: test[:name], fetch:)
 
-        expect(formula_creator.name).to eq(test.fetch(:name))
-        if (version = test[:version])
-          expect(formula_creator.version).to eq(version)
+        expect(formula_creator.name).to eq(test.fetch(:expected_name))
+        if (expected_version = test[:expected_version])
+          expect(formula_creator.version).to eq(expected_version)
         else
           expect(formula_creator.version).to be_null
         end
-        expect(formula_creator.head).to eq(test.fetch(:head, false))
+        expect(formula_creator.head).to eq(test.fetch(:expected_head, false))
       end
     end
   end