diff --git a/ota/h5/index-v6.html b/ota/h5/index-v6.html
index f9cc722..4738414 100644
--- a/ota/h5/index-v6.html
+++ b/ota/h5/index-v6.html
@@ -48,11 +48,16 @@ function checkUpdate(){
  log('checking '+manFile+' ...');
  fetch(BASE+manFile+'?t='+Date.now(),{cache:'no-store'})
  .then(function(r){if(!r.ok)throw Error('HTTP '+r.status);return r.json()})
- .then(function(j){log('remote: '+j.h5_version);
-  dlUrl=j.h5_url;dlSha=j.h5_sha256||'';
-  if(!dlSha){log('ERR: manifest missing h5_sha256');return}
-  if(!dlUrl||dlUrl.indexOf(BASE)!==0){log('ERR: invalid h5_url domain');return}
-  if(j.h5_version!=='0.1.0-dav-android-6'){dlVer=j.h5_version;
+ .then(function(j){log('latest: '+j.latest+' min: '+j.min_version);
+  if(j.min_version){
+   var v=j.min_version.replace(/[^0-9]/g,''),my=document.getElementById('ver').innerText.replace(/[^0-9]/g,'');
+   if(parseInt(my)<parseInt(v)){log('ERR: too old, need APK update');return}
+  }
+  dlUrl=j.url;dlSha=j.sha256||'';
+  if(!dlSha||dlSha.startsWith('TBD')){log('ERR: channel no build');return}
+  if(!dlUrl||dlUrl.indexOf(BASE)!==0){log('ERR: invalid url');return}
+  var myVer=document.getElementById('ver').innerText;
+  if(j.latest!==myVer&&j.latest!=='v'+myVer&&'v'+j.latest!==myVer){dlVer=j.latest;
    log('*** NEW VERSION ***');document.getElementById('btnApply').disabled=false}
   else log('up to date')})
  .catch(function(e){log('ERR: '+e.message)})
diff --git a/ota/h5/manifest-beta.json b/ota/h5/manifest-beta.json
index 35ec80f..edc513c 100644
--- a/ota/h5/manifest-beta.json
+++ b/ota/h5/manifest-beta.json
@@ -1 +1 @@
-{"h5_version":"0.1.0-dav-android-6","h5_sha256":"779e291531062e916cad5e33ee51d6783a30e9e96babee37ae829b491a354413","h5_url":"https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota/h5/index-v6.html"}
\ No newline at end of file
+{"url":"https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota/h5/index-v6.html","min_version":"0.1.0-dav-android-5","latest":"0.1.0-dav-android-6","sha256":"64fbae9250866f44ce7ade0fd415632b1e40299ca0606044cf8606996d060213"}
\ No newline at end of file
diff --git a/ota/h5/manifest-nightly.json b/ota/h5/manifest-nightly.json
index b3f82eb..a7b2534 100644
--- a/ota/h5/manifest-nightly.json
+++ b/ota/h5/manifest-nightly.json
@@ -1 +1 @@
-{"h5_version":"0.1.0-dav-android-7","h5_sha256":"TBD-v7-not-built","h5_url":"https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota/h5/index-v7.html"}
\ No newline at end of file
+{"url":"https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota/h5/index-v7.html","min_version":"0.1.0-dav-android-5","latest":"0.1.0-dav-android-7","sha256":"TBD-v7-not-built"}
\ No newline at end of file
diff --git a/ota/h5/manifest-stable.json b/ota/h5/manifest-stable.json
index 35ec80f..edc513c 100644
--- a/ota/h5/manifest-stable.json
+++ b/ota/h5/manifest-stable.json
@@ -1 +1 @@
-{"h5_version":"0.1.0-dav-android-6","h5_sha256":"779e291531062e916cad5e33ee51d6783a30e9e96babee37ae829b491a354413","h5_url":"https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota/h5/index-v6.html"}
\ No newline at end of file
+{"url":"https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota/h5/index-v6.html","min_version":"0.1.0-dav-android-5","latest":"0.1.0-dav-android-6","sha256":"64fbae9250866f44ce7ade0fd415632b1e40299ca0606044cf8606996d060213"}
\ No newline at end of file
diff --git a/ota/version.txt b/ota/version.txt
index 889c0c3..325febf 100644
--- a/ota/version.txt
+++ b/ota/version.txt
@@ -1 +1 @@
-0.1.0-dav-android-6|https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota/h5/index-v6.html|779e291531062e916cad5e33ee51d6783a30e9e96babee37ae829b491a354413
\ No newline at end of file
+0.1.0-dav-android-6|https://git.childish-ghost.com/LukeMackin/Yuzu-GCA/raw/branch/main/ota/h5/index-v6.html|64fbae9250866f44ce7ade0fd415632b1e40299ca0606044cf8606996d060213
\ No newline at end of file