diff --git a/README.md b/README.md
index fa8b639..b299cd7 100644
--- a/README.md
+++ b/README.md
@@ -126,4 +126,6 @@ Thanks go out to my current and past patrons:
 - Eli
 - Brad S
 - Tobias Ammann
+- oneearedrabbit
+- Octavio Turra
 
diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 16a1731..03d466b 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -4,9 +4,9 @@
 | | |  __/ |_| | | (_) |  _| (_) | |  | |_| | | |
 |_|  \___|\__|_|  \___/|_|  \___/|_|   \__|_| |_|
                                           for nga
-# RetroForth/nga 2023.2 Release Notes
+# RetroForth/nga 2023.3 Release Notes
 
-----------------------------------------------------------------
+================================================================
 
 * no longer display warning on files with only test blocks (#87)
 * added `script:current-line-text` (#85)
@@ -18,5 +18,9 @@
 * mem: now requires 64-bit (rick c)
 * block: words now use block storage device
 * fll: vocabulary added (arland)
+* added string deduplication (`s:dedup`)
+* added new `a:` words: `a:first`, `a:last`, `a:temp`, `a:hash`,
+                        `a:indices`, `a:indices/string`
+* optional use of hashed dictionary name lookups
 
-----------------------------------------------------------------
+================================================================
diff --git a/image/build.retro b/image/build.retro
index bf329b8..f1d4a99 100644
--- a/image/build.retro
+++ b/image/build.retro
@@ -1,3 +1,3 @@
 ~~~
-#12 'BUILD const
+#13 'BUILD const
 ~~~
diff --git a/image/retro.muri b/image/retro.muri
index ff0c22d..9772c9d 100644
--- a/image/retro.muri
+++ b/image/retro.muri
@@ -1,4 +1,4 @@
-# RETRO Core 2023.1
+# RETRO Core 2023.3
 
 RETRO Core is  a minimal Forth implementation for the Nga
 virtual machine. Like Nga this is intended to be used within
@@ -149,7 +149,7 @@ r 9999
 d 1536
 
 : Version
-d 202301
+d 202303
 
 : references
 r interpret
diff --git a/ngaImage b/ngaImage
index f75b6f3..e0fb755 100644
Binary files a/ngaImage and b/ngaImage differ
diff --git a/vm/nga-c/image.c b/vm/nga-c/image.c
index ef8185e..07fe416 100644
--- a/vm/nga-c/image.c
+++ b/vm/nga-c/image.c
@@ -11,7 +11,7 @@
 #endif
 #endif
 CELL ngaImageCells = 20101;
-CELL ngaImage[] = { 1793,19598,20056,20100,202301,417,389,1249,1535,0,11254,0,10,1,10,2,10,3,10,
+CELL ngaImage[] = { 1793,19598,20056,20100,202303,417,389,1249,1535,0,11254,0,10,1,10,2,10,3,10,
                        4,10,5,10,6,10,7,10,8,10,11,10,12,10,13,10,14,10,15,10,
                        16,10,17,10,18,10,19,10,20,10,21,10,22,10,23,10,24,10,25,68223234,
                        1,2575,85000450,1,656912,163,180,268505089,65,64,285281281,0,65,2063,10,101384453,0,9,10,68485378,
@@ -574,7 +574,7 @@ CELL ngaImage[] = { 1793,19598,20056,20100,202301,417,389,1249,1535,0,11254,0,10
                        115,116,101,110,0,2049,11148,2049,11035,1,417,1,17,2049,66,1,11204,7,10,11192,
                        11239,156,12041,-213800119713087686,100,58,72,97,115,104,45,70,117,110,99,116,105,111,110,0,
                        4875,11218,11254,168,12041,7572226109254526,100,58,114,101,104,97,115,104,0,1793,11272,1793,11264,2049,
-                       190,3841,11239,8,10,1,11258,2049,2241,2049,188,16,10,1,11256,2049,8491,10,11240,12,
+                       190,3841,11239,8,10,1,11258,2049,2241,2049,188,16,10,1,11256,2049,8491,10,11240,13,
                        156,0,210668957237,66,85,73,76,68,0,11277,11299,168,0,210709067314,99,111,109,109,97,0,
                        2049,130,10,11288,11312,168,0,6385123288,99,111,110,115,0,2049,1977,1793,11322,4,2049,11299,
                        2049,11299,10,1,11316,2049,2229,10,11302,11336,168,0,193488123,99,97,114,0,10,11327,11346,