diff --git a/deps.edn b/deps.edn
index 0a30b667..a645274c 100644
--- a/deps.edn
+++ b/deps.edn
@@ -10,6 +10,7 @@
          "feature-selmer"
          "feature-logging"
          "feature-priority-map"
+         "feature-rrb-vector"
          "feature-jdbc"
          "pods/src"
          "babashka.nrepl/src"
@@ -46,7 +47,8 @@
         com.taoensso/timbre {:mvn/version "5.2.1"}
         org.clojure/tools.logging {:mvn/version "1.1.0"}
         org.clojure/data.priority-map {:mvn/version "1.1.0"}
-        insn/insn {:mvn/version "0.5.2"}}
+        insn/insn {:mvn/version "0.5.2"}
+        org.clojure/core.rrb-vector {:mvn/version "0.1.2"}}
  :aliases {:babashka/dev
            {:main-opts ["-m" "babashka.main"]}
            :profile
diff --git a/feature-rrb-vector/babashka/impl/rrb_vector.clj b/feature-rrb-vector/babashka/impl/rrb_vector.clj
new file mode 100644
index 00000000..955e5d7b
--- /dev/null
+++ b/feature-rrb-vector/babashka/impl/rrb_vector.clj
@@ -0,0 +1,7 @@
+(ns babashka.impl.rrb-vector
+  (:require [clojure.core.rrb-vector :as rrb]
+            [sci.core :as sci]))
+
+(def rrbns (sci/create-ns 'clojure.core.rrb-vector))
+
+(def rrb-vector-namespace {'catvec (sci/copy-var rrb/catvec rrbns)})
diff --git a/project.clj b/project.clj
index 95df34c5..4373c91a 100644
--- a/project.clj
+++ b/project.clj
@@ -70,6 +70,8 @@
                                               [org.clojure/tools.logging "1.1.0"]]}
              :feature/priority-map {:source-paths ["feature-priority-map"]
                                     :dependencies [[org.clojure/data.priority-map "1.1.0"]]}
+             :feature/rrb-vector {:source-paths ["feature-rrb-vector"]
+                                  :dependencies [[org.clojure/core.rrb-vector "0.1.2"]]}
              :test [:feature/xml
                     :feature/lanterna
                     :feature/yaml
@@ -87,6 +89,7 @@
                     :feature/selmer
                     :feature/logging
                     :feature/priority-map
+                    :feature/rrb-vector
                     {:dependencies [[com.clojure-goes-fast/clj-async-profiler "0.5.0"]
                                     [com.opentable.components/otj-pg-embedded "0.13.3"]]}]
              :uberjar {:global-vars {*assert* false}
diff --git a/script/compile b/script/compile
index 42ab80c2..5e2de169 100755
--- a/script/compile
+++ b/script/compile
@@ -105,6 +105,7 @@ then
     export BABASHKA_FEATURE_SELMER="${BABASHKA_FEATURE_SELMER:-false}"
     export BABASHKA_FEATURE_LOGGING="${BABASHKA_FEATURE_LOGGING:-false}"
     export BABASHKA_FEATURE_PRIORITY_MAP="${BABASHKA_FEATURE_PRIORITY_MAP:-false}"
+    export BABASHKA_FEATURE_RRB_VECTOR="${BABASHKA_FEATURE_RRB_VECTOR:-false}"
 fi
 
 "$GRAALVM_HOME/bin/native-image" "${args[@]}"
diff --git a/script/uberjar b/script/uberjar
index 880aba4e..5bc24c98 100755
--- a/script/uberjar
+++ b/script/uberjar
@@ -168,6 +168,13 @@ else
     BABASHKA_LEIN_PROFILES+=",-feature/priority-map"
 fi
 
+if [ "$BABASHKA_FEATURE_RRB_VECTOR" != "false" ]
+then
+    BABASHKA_LEIN_PROFILES+=",+feature/rrb-vector"
+else
+    BABASHKA_LEIN_PROFILES+=",-feature/rrb-vector"
+fi
+
 cp deps.edn resources/META-INF/babashka/deps.edn
 
 if [ -z "$BABASHKA_JAR" ]; then
diff --git a/script/uberjar.bat b/script/uberjar.bat
index 2ae3beb6..65cdd182 100755
--- a/script/uberjar.bat
+++ b/script/uberjar.bat
@@ -130,6 +130,12 @@ set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,+feature/priority-map
 set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,-feature/priority-map
 )
 
+if not "%BABASHKA_FEATURE_RRB_VECTOR%"=="false" (
+set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,+feature/rrb-vector
+) else (
+set BABASHKA_LEIN_PROFILES=%BABASHKA_LEIN_PROFILES%,-feature/rrb-vector
+)
+
 call lein with-profiles %BABASHKA_LEIN_PROFILES% bb "(+ 1 2 3)"
 
 call lein with-profiles %BABASHKA_LEIN_PROFILES%,+reflection,-uberjar do run
diff --git a/src/babashka/impl/classes.clj b/src/babashka/impl/classes.clj
index adee9d89..885e068f 100644
--- a/src/babashka/impl/classes.clj
+++ b/src/babashka/impl/classes.clj
@@ -116,7 +116,8 @@
     java.util.Iterator
     {:methods [{:name "hasNext"}
                {:name "next"}]}
-    })
+    java.util.TimeZone
+    {:methods [{:name "getTimeZone"}]}})
 
 (def custom-map
   (cond->
@@ -439,6 +440,7 @@
     ;; list above and then everything reachable via the public class will be
     ;; visible in the native image.
     :instance-checks [clojure.lang.AFn
+                      clojure.lang.Agent
                       clojure.lang.AMapEntry ;; for proxy
                       clojure.lang.APersistentMap ;; for proxy
                       clojure.lang.APersistentSet
@@ -489,6 +491,8 @@
                       clojure.lang.Sequential
                       clojure.lang.Seqable
                       clojure.lang.Volatile
+                      java.lang.ExceptionInInitializerError
+                      java.sql.Timestamp
                       java.util.concurrent.atomic.AtomicInteger
                       java.util.concurrent.atomic.AtomicLong
                       java.util.Collection
@@ -594,6 +598,7 @@
     Comparable java.lang.Comparable
     Double java.lang.Double
     Exception java.lang.Exception
+    ExceptionInInitializerError java.lang.ExceptionInInitializerError
     IndexOutOfBoundsException java.lang.IndexOutOfBoundsException
     IllegalArgumentException java.lang.IllegalArgumentException
     IllegalStateException java.lang.IllegalStateException
diff --git a/src/babashka/impl/features.clj b/src/babashka/impl/features.clj
index 00eaa26e..271cf136 100644
--- a/src/babashka/impl/features.clj
+++ b/src/babashka/impl/features.clj
@@ -17,6 +17,7 @@
 (def selmer?         (not= "false" (System/getenv "BABASHKA_FEATURE_SELMER")))
 (def logging?        (not= "false" (System/getenv "BABASHKA_FEATURE_LOGGING")))
 (def priority-map?   (not= "false" (System/getenv "BABASHKA_FEATURE_PRIORITY_MAP")))
+(def rrb-vector?     (not= "false" (System/getenv "BABASHKA_FEATURE_RRB_VECTOR")))
 
 ;; excluded by default
 (def jdbc? (= "true" (System/getenv "BABASHKA_FEATURE_JDBC")))
@@ -76,3 +77,6 @@
 
 (when priority-map?
   (require '[babashka.impl.priority-map]))
+
+(when rrb-vector?
+  (require '[babashka.impl.rrb-vector]))
diff --git a/src/babashka/main.clj b/src/babashka/main.clj
index add257f6..f90ed560 100644
--- a/src/babashka/main.clj
+++ b/src/babashka/main.clj
@@ -256,7 +256,8 @@ Use bb run --help to show this help output.
  :feature/spec-alpha %s
  :feature/selmer %s
  :feature/logging %s
- :feature/priority-map %s}")
+ :feature/priority-map %s
+ :feature/rrb-vector %s}")
     version
     features/csv?
     features/java-nio?
@@ -276,7 +277,8 @@ Use bb run --help to show this help output.
     features/spec-alpha?
     features/selmer?
     features/logging?
-    features/priority-map?)))
+    features/priority-map?
+    features/rrb-vector?)))
 
 (defn read-file [file]
   (let [f (io/file file)]
@@ -442,7 +444,8 @@ Use bb run --help to show this help output.
                              'clojure.tools.logging.readable
                              @(resolve 'babashka.impl.logging/tools-logging-readable-namespace))
     features/priority-map? (assoc 'clojure.data.priority-map
-                                  @(resolve 'babashka.impl.priority-map/priority-map-namespace))))
+                                  @(resolve 'babashka.impl.priority-map/priority-map-namespace))
+    features/rrb-vector? (assoc 'clojure.core.rrb-vector @(resolve 'babashka.impl.rrb-vector/rrb-vector-namespace))))
 
 (def edn-readers (cond-> {}
                    features/yaml?