diff --git a/.efrocachemap b/.efrocachemap
index b24be883..bb57bebf 100644
--- a/.efrocachemap
+++ b/.efrocachemap
@@ -4056,26 +4056,26 @@
   "build/assets/windows/Win32/ucrtbased.dll": "2def5335207d41b21b9823f6805997f1",
   "build/assets/windows/Win32/vc_redist.x86.exe": "b08a55e2e77623fe657bea24f223a3ae",
   "build/assets/windows/Win32/vcruntime140d.dll": "865b2af4d1e26a1a8073c89acb06e599",
-  "build/prefab/full/linux_arm64_gui/debug/ballisticakit": "c98fdb967f44411171c3d7fde1c74471",
-  "build/prefab/full/linux_arm64_gui/release/ballisticakit": "5514854ae459adab968120a361692cd5",
-  "build/prefab/full/linux_arm64_server/debug/dist/ballisticakit_headless": "83bcfb3af22b61e5c35972d989b3f7f8",
-  "build/prefab/full/linux_arm64_server/release/dist/ballisticakit_headless": "a63758734d93eb969fe482b56c8d1ed2",
-  "build/prefab/full/linux_x86_64_gui/debug/ballisticakit": "7e68a605645c70fca06e4f4d5155bb0c",
-  "build/prefab/full/linux_x86_64_gui/release/ballisticakit": "0598aa59718bb8404c3b007c22123c75",
-  "build/prefab/full/linux_x86_64_server/debug/dist/ballisticakit_headless": "9c86d900fc1bc2d6f3bdb4c3e26149da",
-  "build/prefab/full/linux_x86_64_server/release/dist/ballisticakit_headless": "37f5996151f983b45925ad15dce2d0e9",
-  "build/prefab/full/mac_arm64_gui/debug/ballisticakit": "b8560855bf772b3e74f2a8f190f54885",
-  "build/prefab/full/mac_arm64_gui/release/ballisticakit": "55c777fa3afd720089223fb949478502",
-  "build/prefab/full/mac_arm64_server/debug/dist/ballisticakit_headless": "81a41ddca9da9060d5d5034a84845674",
-  "build/prefab/full/mac_arm64_server/release/dist/ballisticakit_headless": "536825d983f4a3bcec018b0295005bdb",
-  "build/prefab/full/mac_x86_64_gui/debug/ballisticakit": "1733a9610de15f77dd8df3effcca1516",
-  "build/prefab/full/mac_x86_64_gui/release/ballisticakit": "f7434d47c371f0baaae676d288847351",
-  "build/prefab/full/mac_x86_64_server/debug/dist/ballisticakit_headless": "d16ea39c50f41117697789dafb249200",
-  "build/prefab/full/mac_x86_64_server/release/dist/ballisticakit_headless": "55d18233c5b887af17afcb266a8c5597",
-  "build/prefab/full/windows_x86_gui/debug/BallisticaKit.exe": "c4df3b76ef890daf48e8181cffd4cd82",
-  "build/prefab/full/windows_x86_gui/release/BallisticaKit.exe": "eb609d02a0897c671e40519faad3365b",
-  "build/prefab/full/windows_x86_server/debug/dist/BallisticaKitHeadless.exe": "0c0d303a440e852d0112c3a5aa75ef36",
-  "build/prefab/full/windows_x86_server/release/dist/BallisticaKitHeadless.exe": "bdd6b2c15d6718a6c99ee287d965f022",
+  "build/prefab/full/linux_arm64_gui/debug/ballisticakit": "b3aaa8011f040ba38b1abcff978e3c85",
+  "build/prefab/full/linux_arm64_gui/release/ballisticakit": "f5623a29f71cf5363ff72fe4436340b1",
+  "build/prefab/full/linux_arm64_server/debug/dist/ballisticakit_headless": "9f5ec716df130f92e9b055e9fca4bbc8",
+  "build/prefab/full/linux_arm64_server/release/dist/ballisticakit_headless": "327f6b0da02ecf72006ff88dd37b31ac",
+  "build/prefab/full/linux_x86_64_gui/debug/ballisticakit": "ede687d69269225dc788851fc4515ccf",
+  "build/prefab/full/linux_x86_64_gui/release/ballisticakit": "16029a78e585822f78fe4619beba456c",
+  "build/prefab/full/linux_x86_64_server/debug/dist/ballisticakit_headless": "8f091556ac938da89cab226d9bb59dec",
+  "build/prefab/full/linux_x86_64_server/release/dist/ballisticakit_headless": "08ea82e016ce2d7ac8d687a795e7a179",
+  "build/prefab/full/mac_arm64_gui/debug/ballisticakit": "91d4f5cb9b13eb6f2964187fd7ff9cc5",
+  "build/prefab/full/mac_arm64_gui/release/ballisticakit": "ed93c1d02f14dc147d2d84c8f919568c",
+  "build/prefab/full/mac_arm64_server/debug/dist/ballisticakit_headless": "5e3eb1b9195fcbf3ec477392b15bff23",
+  "build/prefab/full/mac_arm64_server/release/dist/ballisticakit_headless": "b6cf7d6cf47f8bbf1b3c4f28ba9c7854",
+  "build/prefab/full/mac_x86_64_gui/debug/ballisticakit": "f044e3d1d94751272c02f864ddafbe6b",
+  "build/prefab/full/mac_x86_64_gui/release/ballisticakit": "aa56b6e21eb82ca8af11a248bde876d1",
+  "build/prefab/full/mac_x86_64_server/debug/dist/ballisticakit_headless": "4ee8ff4b9d37bbc3d7a7db73168f8888",
+  "build/prefab/full/mac_x86_64_server/release/dist/ballisticakit_headless": "dc62f105598c866680a0fd150b83ea0a",
+  "build/prefab/full/windows_x86_gui/debug/BallisticaKit.exe": "a04e0837368e5eae80ec084a898b79d8",
+  "build/prefab/full/windows_x86_gui/release/BallisticaKit.exe": "cd5b75cfa4cf0bfd478092ef812006c4",
+  "build/prefab/full/windows_x86_server/debug/dist/BallisticaKitHeadless.exe": "4decefaeffa74fb89f39834960c8fd5f",
+  "build/prefab/full/windows_x86_server/release/dist/BallisticaKitHeadless.exe": "73087f5f43a6e9d4b10529824d671d6b",
   "build/prefab/lib/linux_arm64_gui/debug/libballisticaplus.a": "becf7a70c7c0d7bb5bfe731dde5e0249",
   "build/prefab/lib/linux_arm64_gui/release/libballisticaplus.a": "c9ef036408f0832cd068a34365485e0b",
   "build/prefab/lib/linux_arm64_server/debug/libballisticaplus.a": "becf7a70c7c0d7bb5bfe731dde5e0249",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9d37890f..829ff616 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-### 1.7.28 (build 21510, api 8, 2023-10-26)
+### 1.7.28 (build 21512, api 8, 2023-10-26)
 
 - Massively cleaned up code related to rendering and window systems (OpenGL,
   SDL, etc). This code had been growing into a nasty tangle for 15 years
diff --git a/src/assets/ba_data/python/baenv.py b/src/assets/ba_data/python/baenv.py
index d2bc7bfe..1c6f98c8 100644
--- a/src/assets/ba_data/python/baenv.py
+++ b/src/assets/ba_data/python/baenv.py
@@ -52,7 +52,7 @@ if TYPE_CHECKING:
 
 # Build number and version of the ballistica binary we expect to be
 # using.
-TARGET_BALLISTICA_BUILD = 21510
+TARGET_BALLISTICA_BUILD = 21512
 TARGET_BALLISTICA_VERSION = '1.7.28'
 
 
diff --git a/src/ballistica/base/input/input.cc b/src/ballistica/base/input/input.cc
index dfca9fd0..e1a591da 100644
--- a/src/ballistica/base/input/input.cc
+++ b/src/ballistica/base/input/input.cc
@@ -155,11 +155,13 @@ void Input::CreateTouchInput() {
 }
 
 void Input::AnnounceConnects_() {
+  assert(g_base->InLogicThread());
+
   static bool first_print = true;
 
   // For the first announcement just say "X controllers detected" and don't
   // have a sound.
-  if (first_print && g_core->GetAppTimeSeconds() < 2.0) {
+  if (first_print && g_core->GetAppTimeSeconds() < 3.0) {
     first_print = false;
 
     // Disabling this completely on Android for now; we often get large
@@ -237,12 +239,14 @@ void Input::ShowStandardInputDeviceConnectedMessage_(InputDevice* j) {
   }
   newly_connected_controllers_.push_back(j->GetDeviceName() + suffix);
 
-  // Set a timer to go off and announce the accumulated additions.
+  // Set a timer to go off and announce controller additions. This allows
+  // several connecting at (almost) the same time to be announced as a
+  // single event.
   if (connect_print_timer_id_ != 0) {
     g_base->logic->DeleteAppTimer(connect_print_timer_id_);
   }
   connect_print_timer_id_ = g_base->logic->NewAppTimer(
-      250, false, NewLambdaRunnable([this] { AnnounceConnects_(); }).Get());
+      500, false, NewLambdaRunnable([this] { AnnounceConnects_(); }).Get());
 }
 
 void Input::ShowStandardInputDeviceDisconnectedMessage_(InputDevice* j) {
diff --git a/src/ballistica/shared/ballistica.cc b/src/ballistica/shared/ballistica.cc
index 747e6a9a..d34c69ce 100644
--- a/src/ballistica/shared/ballistica.cc
+++ b/src/ballistica/shared/ballistica.cc
@@ -39,7 +39,7 @@ auto main(int argc, char** argv) -> int {
 namespace ballistica {
 
 // These are set automatically via script; don't modify them here.
-const int kEngineBuildNumber = 21510;
+const int kEngineBuildNumber = 21512;
 const char* kEngineVersion = "1.7.28";
 const int kEngineApiVersion = 8;