diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for stack-all
 
-## 0.1.0 -- 2020-11-14
+## 0.1.1 (2020-12-04)
+- fix ordering of stack-lts-*.yaml
+- allow --newest to override oldest lts config
+
+## 0.1.0 (2020-11-14)
 - initial release with --create-config, --debug, --cmd, --newest
 - VersionSpec: --all-lts, --oldest, and lts args
diff --git a/Main.hs b/Main.hs
--- a/Main.hs
+++ b/Main.hs
@@ -3,6 +3,7 @@
 import Control.Monad.Extra
 import Data.Ini.Config
 import Data.List.Extra
+import Data.Maybe
 import qualified Data.Text.IO as T
 import SimpleCmd
 import SimpleCmdArgs
@@ -19,6 +20,15 @@
 data Snapshot = LTS Int | Nightly
   deriving (Eq, Ord)
 
+-- maybeReadSnap "lts16"
+readCompactSnap :: String -> Maybe Snapshot
+readCompactSnap "nightly" = Just Nightly
+readCompactSnap snap =
+  if "lts" `isPrefixOf` snap then
+    let major = read (dropPrefix "lts" snap) in Just (LTS major)
+  else Nothing
+
+-- readSnap "lts-16"
 readSnap :: String -> Snapshot
 readSnap "nightly" = Nightly
 readSnap snap =
@@ -46,7 +56,7 @@
     error' "no stack.yaml found"
   simpleCmdArgs (Just version) "Build over Stackage versions"
     "stack-all builds projects easily across different Stackage versions" $
-    main' <$>
+    run <$>
     switchWith 'c' "create-config" "Create a project .stack-all file" <*>
     switchWith 'd' "debug" "Verbose stack build output on error" <*>
     optional (readSnap <$> strOptionWith 'n' "newest" "lts-MAJOR" "Newest LTS release to build from") <*>
@@ -58,8 +68,8 @@
       VersionList . map readSnap <$> some (strArg "LTS") <|>
       flagWith DefaultVersions AllVersions 'a' "all-lts" "Try to build back to LTS 1 even"
 
-main' :: Bool -> Bool -> Maybe Snapshot -> Maybe String -> VersionSpec -> IO ()
-main' createConfig debug mnewest mcmd versionSpec = do
+run :: Bool -> Bool -> Maybe Snapshot -> Maybe String -> VersionSpec -> IO ()
+run createConfig debug mnewest mcmd versionSpec = do
   if createConfig then
     case versionSpec of
       Oldest oldest -> createStackAll oldest
@@ -68,17 +78,20 @@
     versions <-
       case versionSpec of
         DefaultVersions -> do
-          oldest <- fromMaybeM (return defaultOldest) getOldestLTS
-          return $ filter (>= oldest) allSnaps
+          oldest <- fromMaybeM (return defaultOldest) readOldestLTS
+          return $ case mnewest of
+                     Just newest | newest < oldest -> filter (newest >=) allSnaps
+                     _ -> filter (>= oldest) allSnaps
         AllVersions -> return allSnaps
         Oldest ver -> return $ filter (>= ver) allSnaps
         VersionList vers -> return vers
-    configs <- filter isStackConf <$> listDirectory "."
+    configs <- mapMaybe readStackConf <$> listDirectory "."
     let newestFilter = maybe id (filter . (>=)) mnewest
     mapM_ (stackBuild configs debug mcmd) (newestFilter versions)
   where
-    isStackConf :: FilePath -> Bool
-    isStackConf f = "stack-" `isPrefixOf` f && "yaml" `isExtensionOf` f
+    readStackConf :: FilePath -> Maybe Snapshot
+    readStackConf f =
+      stripPrefix "stack-" f >>= stripSuffix ".yaml" >>= readCompactSnap
 
 stackAllFile :: FilePath
 stackAllFile = ".stack-all"
@@ -91,8 +104,8 @@
     writeFile stackAllFile $
       "[versions]\n# reason comment\noldest = " ++ showSnap snap ++ "\n"
 
-getOldestLTS :: IO (Maybe Snapshot)
-getOldestLTS = do
+readOldestLTS :: IO (Maybe Snapshot)
+readOldestLTS = do
   haveConfig <- doesFileExist stackAllFile
   if haveConfig then
     Just . readSnap <$> readIniConfig stackAllFile rcParser id
@@ -108,13 +121,13 @@
       ini <- T.readFile inifile
       return $ either error fn $ parseIniFile ini iniparser
 
-stackBuild :: [FilePath] -> Bool -> Maybe String -> Snapshot -> IO ()
+stackBuild :: [Snapshot] -> Bool -> Maybe String -> Snapshot -> IO ()
 stackBuild configs debug mcmd snap = do
   let command = maybe ["build"] words mcmd
       config =
-        case sort (filter (snapConfig <=) configs) of
+        case sort (filter (snap <=) configs) of
           [] -> []
-          (cfg:_) -> ["--stack-yaml", cfg]
+          (cfg:_) -> ["--stack-yaml", showConfig cfg]
       args = ["-v" | debug] ++ ["--resolver", showSnap snap] ++
              config ++ command
   if debug
@@ -122,8 +135,8 @@
     else cmd_ "stack" args
   putStrLn ""
   where
-    snapConfig :: FilePath
-    snapConfig = "stack-" ++ compactSnap snap <.> "yaml"
+    showConfig :: Snapshot -> FilePath
+    showConfig sn = "stack-" ++ compactSnap sn <.> "yaml"
       where
         compactSnap :: Snapshot -> String
         compactSnap Nightly = "nightly"
diff --git a/stack-all.cabal b/stack-all.cabal
--- a/stack-all.cabal
+++ b/stack-all.cabal
@@ -1,5 +1,5 @@
 name:                stack-all
-version:             0.1
+version:             0.1.1
 synopsis:            CLI tool for building across Stackage major versions
 description:
         Build your Haskell project over Stackage major versions.
@@ -28,7 +28,7 @@
                        config-ini,
                        directory,
                        extra >= 1.6.15,
-                       filepath,
+                       filepath >= 1.4.2,
                        process,
                        simple-cmd >= 0.1.4,
                        simple-cmd-args,