diff --git a/README.md b/README.md
index 7671a6c..a769259 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,8 @@
 
 libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2,
 AVX2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression
-on x86, x86-64, ARM, and PowerPC systems.  On such systems, libjpeg-turbo is
+on x86, x86-64, ARM, and PowerPC systems, as well as progressive JPEG
+compression on x86 and x86-64 systems.  On such systems, libjpeg-turbo is
 generally 2-6x as fast as libjpeg, all else being equal.  On other types of
 systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by
 virtue of its highly-optimized Huffman coding routines.  In many cases, the
diff --git a/release/ReadMe.txt b/release/ReadMe.txt
index a3bafd9..cf9012a 100644
--- a/release/ReadMe.txt
+++ b/release/ReadMe.txt
@@ -1,4 +1,4 @@
-libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2, AVX2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression on x86, x86-64, ARM, and PowerPC systems.  On such systems, libjpeg-turbo is generally 2-6x as fast as libjpeg, all else being equal.  On other types of systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by virtue of its highly-optimized Huffman coding routines.  In many cases, the performance of libjpeg-turbo rivals that of proprietary high-speed JPEG codecs.
+libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2, AVX2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression on x86, x86-64, ARM, and PowerPC systems, as well as progressive JPEG compression on x86 and x86-64 systems.  On such systems, libjpeg-turbo is generally 2-6x as fast as libjpeg, all else being equal.  On other types of systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by virtue of its highly-optimized Huffman coding routines.  In many cases, the performance of libjpeg-turbo rivals that of proprietary high-speed JPEG codecs.
 
 libjpeg-turbo implements both the traditional libjpeg API as well as the less powerful but more straightforward TurboJPEG API.  libjpeg-turbo also features colorspace extensions that allow it to compress from/decompress to 32-bit and big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java interface.
 
diff --git a/release/deb-control.in b/release/deb-control.in
index 8c54dd9..08131c6 100644
--- a/release/deb-control.in
+++ b/release/deb-control.in
@@ -10,7 +10,8 @@
 Description: A SIMD-accelerated JPEG codec that provides both the libjpeg and TurboJPEG APIs
  libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2,
  AVX2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression
- on x86, x86-64, ARM, and PowerPC systems.  On such systems, libjpeg-turbo is
+ on x86, x86-64, ARM, and PowerPC systems, as well as progressive JPEG
+ compression on x86 and x86-64 systems.  On such systems, libjpeg-turbo is
  generally 2-6x as fast as libjpeg, all else being equal.  On other types of
  systems, libjpeg-turbo can still outperform libjpeg by a significant amount,
  by virtue of its highly-optimized Huffman coding routines.  In many cases, the
diff --git a/release/rpm.spec.in b/release/rpm.spec.in
index 54101bc..a22c5e1 100644
--- a/release/rpm.spec.in
+++ b/release/rpm.spec.in
@@ -53,7 +53,8 @@
 %description
 libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2,
 AVX2, NEON, AltiVec) to accelerate baseline JPEG compression and decompression
-on x86, x86-64, ARM, and PowerPC systems.  On such systems, libjpeg-turbo is
+on x86, x86-64, ARM, and PowerPC systems, as well as progressive JPEG
+compression on x86 and x86-64 systems.  On such systems, libjpeg-turbo is
 generally 2-6x as fast as libjpeg, all else being equal.  On other types of
 systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by
 virtue of its highly-optimized Huffman coding routines.  In many cases, the