arduino
diff --git a/‎build/arduino-builder-linux32-1.6.0.tar.bz2.sha
-1 b/‎build/arduino-builder-linux32-1.6.0.tar.bz2.sha
-1
diff --git a/‎build/arduino-builder-linux32-1.6.1.tar.bz2.sha
+1 b/‎build/arduino-builder-linux32-1.6.1.tar.bz2.sha
+1
diff --git a/‎build/arduino-builder-linux64-1.6.0.tar.bz2.sha
-1 b/‎build/arduino-builder-linux64-1.6.0.tar.bz2.sha
-1
diff --git a/‎build/arduino-builder-linux64-1.6.1.tar.bz2.sha
+1 b/‎build/arduino-builder-linux64-1.6.1.tar.bz2.sha
+1
diff --git a/‎build/arduino-builder-linuxaarch64-1.6.0.tar.bz2.sha
-1 b/‎build/arduino-builder-linuxaarch64-1.6.0.tar.bz2.sha
-1
diff --git a/‎build/arduino-builder-linuxaarch64-1.6.1.tar.bz2.sha
+1 b/‎build/arduino-builder-linuxaarch64-1.6.1.tar.bz2.sha
+1
diff --git a/‎build/arduino-builder-linuxarm-1.6.0.tar.bz2.sha
-1 b/‎build/arduino-builder-linuxarm-1.6.0.tar.bz2.sha
-1
diff --git a/‎build/arduino-builder-linuxarm-1.6.1.tar.bz2.sha
+1 b/‎build/arduino-builder-linuxarm-1.6.1.tar.bz2.sha
+1
diff --git a/‎build/arduino-builder-macosx-1.6.0-signed.tar.bz2.sha
-1 b/‎build/arduino-builder-macosx-1.6.0-signed.tar.bz2.sha
-1
diff --git a/‎build/arduino-builder-macosx-1.6.1-signed.tar.bz2.sha
+1 b/‎build/arduino-builder-macosx-1.6.1-signed.tar.bz2.sha
+1
diff --git a/‎build/arduino-builder-windows-1.6.0.zip.sha
-1 b/‎build/arduino-builder-windows-1.6.0.zip.sha
-1
diff --git a/‎build/arduino-builder-windows-1.6.1.zip.sha
+1 b/‎build/arduino-builder-windows-1.6.1.zip.sha
+1
diff --git a/‎build/build.xml
+1-1 b/‎build/build.xml
+1-1
diff --git a/‎build/shared/revisions.txt
+4-1 b/‎build/shared/revisions.txt
+4-1
@@ -0,0 +1 @@
+e034c072a81f00a831dd602a5e7beabc2cd0f1a0
@@ -0,0 +1 @@
+57c1f3ffc849aed119207d8fd8a130a967d0e6c8
@@ -0,0 +1 @@
+b54ad6ec630d66521a84075c763e8325c6f82591
@@ -0,0 +1 @@
+cb378bc29edeb90ad52d0544e02862a137b5f54c
@@ -0,0 +1 @@
+e1335e27ac3b92421c18977884eb558c07af76ab
@@ -0,0 +1 @@
+b341957539bc149300607ec03366e3910e2ac0a5
@@ -99,7 +99,7 @@
 
   <property name="portable" value="false" />
 
-  <property name="ARDUINO-BUILDER-VERSION" value="1.6.0" />
+  <property name="ARDUINO-BUILDER-VERSION" value="1.6.1" />
   <property name="LIBLISTSERIAL-VERSION" value="1.4.2-2" />
   <property name="AVRGCC-VERSION" value="7.3.0-atmel3.6.1-arduino7" />
   <property name="AVRDUDE-VERSION" value="6.3.0-arduino17" />
 
@@ -1,4 +1,7 @@
-ARDUINO 1.8.15 2021.??.??
+ARDUINO 1.8.15 2021.05.13
+
+HOTFIX:
+* Fixed regression in library discovery (failing to compile bundled libs, like SD or Ethernet, on some platforms)
 
 
 ARDUINO 1.8.14 2021.05.12
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`@@ -0,0 +1 @@`
	`1`	`+e034c072a81f00a831dd602a5e7beabc2cd0f1a0`
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`@@ -0,0 +1 @@`
	`1`	`+57c1f3ffc849aed119207d8fd8a130a967d0e6c8`
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`@@ -0,0 +1 @@`
	`1`	`+b54ad6ec630d66521a84075c763e8325c6f82591`
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`@@ -0,0 +1 @@`
	`1`	`+cb378bc29edeb90ad52d0544e02862a137b5f54c`
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`@@ -0,0 +1 @@`
	`1`	`+e1335e27ac3b92421c18977884eb558c07af76ab`
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`@@ -0,0 +1 @@`
	`1`	`+b341957539bc149300607ec03366e3910e2ac0a5`