{"action":"created","issue":{"url":"https://api.github.com/repos/Microsoft/visualfsharp/issues/718","labels_url":"https://api.github.com/repos/Microsoft/visualfsharp/issues/718/labels{/name}","comments_url":"https://api.github.com/repos/Microsoft/visualfsharp/issues/718/comments","events_url":"https://api.github.com/repos/Microsoft/visualfsharp/issues/718/events","html_url":"https://github.com/Microsoft/visualfsharp/issues/718","id":115941948,"number":718,"title":"switch to portable pdb files","user":{"login":"ctaggart","id":80104,"avatar_url":"https://avatars.githubusercontent.com/u/80104?v=3","gravatar_id":"","url":"https://api.github.com/users/ctaggart","html_url":"https://github.com/ctaggart","followers_url":"https://api.github.com/users/ctaggart/followers","following_url":"https://api.github.com/users/ctaggart/following{/other_user}","gists_url":"https://api.github.com/users/ctaggart/gists{/gist_id}","starred_url":"https://api.github.com/users/ctaggart/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ctaggart/subscriptions","organizations_url":"https://api.github.com/users/ctaggart/orgs","repos_url":"https://api.github.com/users/ctaggart/repos","events_url":"https://api.github.com/users/ctaggart/events{/privacy}","received_events_url":"https://api.github.com/users/ctaggart/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-11-09T19:00:05Z","updated_at":"2015-11-10T09:31:48Z","closed_at":null,"body":"Portable pdb files are designed specifically for .NET. The [spec is now 1.0](https://github.com/dotnet/roslyn/blob/master/docs/specs/PortablePdb-Metadata.md) and an implementation ships with Roslyn for Visual Studio 2015 Update 1. The new format is cross platform and several times smaller, making it practical to include in the `nupkg`s #294. This should take care of the [CoreCLR status](https://github.com/Microsoft/visualfsharp/wiki/F%23-for-CoreCLR---Status) issue of `Enable CoreCLR debugging of F#`. \r\n\r\n`Microsoft.DiaSymReader.PortablePdb` exists to provide compatibility to the existing Windows debugging tools that build on top of that COM API.\r\n![image](https://cloud.githubusercontent.com/assets/80104/11043080/cdcb632a-86cf-11e5-816a-e46472999d3e.png)\r\n\r\nI am advocating that the old PDB support be dropped to makes things simpler and easier to maintain."},"comment":{"url":"https://api.github.com/repos/Microsoft/visualfsharp/issues/comments/155368461","html_url":"https://github.com/Microsoft/visualfsharp/issues/718#issuecomment-155368461","issue_url":"https://api.github.com/repos/Microsoft/visualfsharp/issues/718","id":155368461,"user":{"login":"enricosada","id":147243,"avatar_url":"https://avatars.githubusercontent.com/u/147243?v=3","gravatar_id":"","url":"https://api.github.com/users/enricosada","html_url":"https://github.com/enricosada","followers_url":"https://api.github.com/users/enricosada/followers","following_url":"https://api.github.com/users/enricosada/following{/other_user}","gists_url":"https://api.github.com/users/enricosada/gists{/gist_id}","starred_url":"https://api.github.com/users/enricosada/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/enricosada/subscriptions","organizations_url":"https://api.github.com/users/enricosada/orgs","repos_url":"https://api.github.com/users/enricosada/repos","events_url":"https://api.github.com/users/enricosada/events{/privacy}","received_events_url":"https://api.github.com/users/enricosada/received_events","type":"User","site_admin":false},"created_at":"2015-11-10T09:31:48Z","updated_at":"2015-11-10T09:31:48Z","body":"No need to deprecate pdb, just add the portable pdb, the user can choose using a compiler flag.\r\nAfter portable pdb works, can be the default for new projects ( in project templates )\r\n\r\nBtw yes, i think portable pdb is not a coreclr only issue, should be send to master, and merged in coreclr later, so we can use it with desktop clr ( .net 4.0 )\r\n"}}