4 files changed, 5 insertions, 23 deletions
diff --git a/cli/args/flags.rs b/cli/args/flags.rs
index 738bf9948..97cfbcaff 100644
--- a/cli/args/flags.rs
+++ b/cli/args/flags.rs
@@ -902,7 +902,6 @@ pub fn flags_from_vec(args: Vec<String>) -> clap::error::Result<Flags> {
     matches.get_flag("unstable-bare-node-builtins");
   flags.unstable_byonm = matches.get_flag("unstable-byonm");
   flags.unstable_sloppy_imports = matches.get_flag("unstable-sloppy-imports");
-  flags.unstable_workspaces = matches.get_flag("unstable-workspaces");
 
   if matches.get_flag("quiet") {
     flags.log_level = Some(Level::Error);
@@ -1030,15 +1029,6 @@ fn clap_root() -> Command {
         .value_parser(FalseyValueParser::new())
         .action(ArgAction::SetTrue)
         .global(true),
-    )
-    .arg(
-      Arg::new("unstable-workspaces")
-        .long("unstable-workspaces")
-        .help("Enable unstable 'workspaces' feature")
-        .env("DENO_UNSTABLE_WORKSPACES")
-        .value_parser(FalseyValueParser::new())
-        .action(ArgAction::SetTrue)
-        .global(true),
     );
 
   for (flag_name, help, _) in crate::UNSTABLE_GRANULAR_FLAGS {
diff --git a/cli/args/mod.rs b/cli/args/mod.rs
index 23723d916..ae48aae50 100644
--- a/cli/args/mod.rs
+++ b/cli/args/mod.rs
@@ -707,14 +707,6 @@ impl CliOptions {
         None
       };
 
-    // TODO(bartlomieju): remove in v1.39 or v1.40.
-    if let Some(wsconfig) = &maybe_workspace_config {
-      if !wsconfig.members.is_empty() && !flags.unstable_workspaces {
-        eprintln!("Use of unstable 'workspaces' feature. The --unstable-workspaces flags must be provided.");
-        std::process::exit(70);
-      }
-    }
-
     if let Some(env_file_name) = &flags.env_file {
       if (from_filename(env_file_name)).is_err() {
         bail!("Unable to load '{env_file_name}' environment variable file")
diff --git a/cli/tests/integration/publish_tests.rs b/cli/tests/integration/publish_tests.rs
index c0d00f09f..a28736fac 100644
--- a/cli/tests/integration/publish_tests.rs
+++ b/cli/tests/integration/publish_tests.rs
@@ -72,7 +72,7 @@ itest!(successful {
 });
 
 itest!(workspace_all {
-  args: "publish --unstable-workspaces --token 'sadfasdf'",
+  args: "publish --token 'sadfasdf'",
   output: "publish/workspace.out",
   cwd: Some("publish/workspace"),
   copy_temp_dir: Some("publish/workspace"),
@@ -82,7 +82,7 @@ itest!(workspace_all {
 });
 
 itest!(workspace_individual {
-  args: "publish --unstable-workspaces --token 'sadfasdf'",
+  args: "publish --token 'sadfasdf'",
   output: "publish/workspace_individual.out",
   cwd: Some("publish/workspace/bar"),
   copy_temp_dir: Some("publish/workspace"),
diff --git a/cli/tests/integration/run_tests.rs b/cli/tests/integration/run_tests.rs
index 999dc1177..38408c0f9 100644
--- a/cli/tests/integration/run_tests.rs
+++ b/cli/tests/integration/run_tests.rs
@@ -4804,7 +4804,7 @@ itest!(explicit_resource_management {
 });
 
 itest!(workspaces_basic {
-  args: "run -L debug -A --unstable-workspaces main.ts",
+  args: "run -L debug -A main.ts",
   output: "run/workspaces/basic/main.out",
   cwd: Some("run/workspaces/basic/"),
   copy_temp_dir: Some("run/workspaces/basic/"),
@@ -4813,7 +4813,7 @@ itest!(workspaces_basic {
 });
 
 itest!(workspaces_member_outside_root_dir {
-  args: "run -A --unstable-workspaces main.ts",
+  args: "run -A main.ts",
   output: "run/workspaces/member_outside_root_dir/main.out",
   cwd: Some("run/workspaces/member_outside_root_dir/"),
   copy_temp_dir: Some("run/workspaces/member_outside_root_dir/"),
@@ -4823,7 +4823,7 @@ itest!(workspaces_member_outside_root_dir {
 });
 
 itest!(workspaces_nested_member {
-  args: "run -A --unstable-workspaces main.ts",
+  args: "run -A main.ts",
   output: "run/workspaces/nested_member/main.out",
   cwd: Some("run/workspaces/nested_member/"),
   copy_temp_dir: Some("run/workspaces/nested_member/"),