diff --git a/cross/tcl/Makefile b/cross/tcl/Makefile
index 329cd7110a4..96d8eb3b334 100644
--- a/cross/tcl/Makefile
+++ b/cross/tcl/Makefile
@@ -1,5 +1,5 @@
 PKG_NAME = tcl
-PKG_VERS = 8.6.10
+PKG_VERS = 8.6.11
 PKG_MAIN_VERS=$(word 1,$(subst ., ,$(PKG_VERS))).$(word 2,$(subst ., ,$(PKG_VERS)))
 PKG_EXT = tar.gz
 PKG_DIST_NAME = $(PKG_NAME)$(PKG_VERS)-src.$(PKG_EXT)
@@ -16,9 +16,8 @@ GNU_CONFIGURE = 1
 
 include ../../mk/spksrc.archs.mk
 
-# Enable 64-bit support in Tcl for x64 architectures
-# aarch64 does not support 64-bit (don't know magic for this platform)
-ifeq ($(findstring $(ARCH),$(x64_ARCHS)),$(ARCH))
+# Enable 64-bit support in Tcl for 64-bit architectures (amd64 and arm64)
+ifeq ($(findstring $(ARCH),$(x64_ARCHS) $(ARMv8_ARCHS)),$(ARCH))
   CONFIGURE_ARGS = --enable-64bit
 endif
 
@@ -31,3 +30,4 @@ include ../../mk/spksrc.cross-cc.mk
 .PHONY: tcl_post_install
 tcl_post_install:
 	$(RUN) ln -s -r $(STAGING_INSTALL_PREFIX)/lib/libtcl$(PKG_MAIN_VERS).so $(STAGING_INSTALL_PREFIX)/lib/libtcl.so
+	$(RUN) ln -s -r $(STAGING_INSTALL_PREFIX)/bin/tclsh$(PKG_MAIN_VERS) $(STAGING_INSTALL_PREFIX)/bin/tclsh
diff --git a/cross/tcl/PLIST b/cross/tcl/PLIST
index 763445fc9e3..912f90496e0 100644
--- a/cross/tcl/PLIST
+++ b/cross/tcl/PLIST
@@ -1,15 +1,16 @@
 rsc:bin/sqlite3_analyzer
+lnk:bin/tclsh
 bin:bin/tclsh8.6
-rsc:lib/itcl4.2.0/itcl.tcl
-rsc:lib/itcl4.2.0/itclConfig.sh
-rsc:lib/itcl4.2.0/itclHullCmds.tcl
-rsc:lib/itcl4.2.0/itclWidget.tcl
-lib:lib/itcl4.2.0/libitcl4.2.0.so
-rsc:lib/itcl4.2.0/pkgIndex.tcl
+rsc:lib/itcl4.2.1/itcl.tcl
+rsc:lib/itcl4.2.1/itclConfig.sh
+rsc:lib/itcl4.2.1/itclHullCmds.tcl
+rsc:lib/itcl4.2.1/itclWidget.tcl
+lib:lib/itcl4.2.1/libitcl4.2.1.so
+rsc:lib/itcl4.2.1/pkgIndex.tcl
 lnk:lib/libtcl.so
 lib:lib/libtcl8.6.so
-lib:lib/sqlite3.30.1.2/libsqlite3.30.1.2.so
-rsc:lib/sqlite3.30.1.2/pkgIndex.tcl
+lib:lib/sqlite3.34.0/libsqlite3.34.0.so
+rsc:lib/sqlite3.34.0/pkgIndex.tcl
 rsc:lib/tcl8.6/auto.tcl
 rsc:lib/tcl8.6/clock.tcl
 rsc:lib/tcl8.6/encoding/
@@ -26,27 +27,27 @@ rsc:lib/tcl8.6/safe.tcl
 rsc:lib/tcl8.6/tclIndex
 rsc:lib/tcl8.6/tm.tcl
 rsc:lib/tcl8.6/word.tcl
-rsc:lib/tcl8/8.4/platform-1.0.14.tm
+rsc:lib/tcl8/8.4/platform-1.0.15.tm
 rsc:lib/tcl8/8.4/platform/shell-1.1.4.tm
 rsc:lib/tcl8/8.5/msgcat-1.6.1.tm
-rsc:lib/tcl8/8.5/tcltest-2.5.1.tm
-rsc:lib/tcl8/8.6/http-2.9.1.tm
-rsc:lib/tcl8/8.6/tdbc/sqlite3-1.1.1.tm
+rsc:lib/tcl8/8.5/tcltest-2.5.3.tm
+rsc:lib/tcl8/8.6/http-2.9.5.tm
+rsc:lib/tcl8/8.6/tdbc/sqlite3-1.1.2.tm
 rsc:lib/tclConfig.sh
 rsc:lib/tclooConfig.sh
-lib:lib/tdbc1.1.1/libtdbc1.1.1.so
-rsc:lib/tdbc1.1.1/pkgIndex.tcl
-rsc:lib/tdbc1.1.1/tdbc.tcl
-rsc:lib/tdbc1.1.1/tdbcConfig.sh
-lib:lib/tdbcmysql1.1.1/libtdbcmysql1.1.1.so
-rsc:lib/tdbcmysql1.1.1/pkgIndex.tcl
-rsc:lib/tdbcmysql1.1.1/tdbcmysql.tcl
-lib:lib/tdbcodbc1.1.1/libtdbcodbc1.1.1.so
-rsc:lib/tdbcodbc1.1.1/pkgIndex.tcl
-rsc:lib/tdbcodbc1.1.1/tdbcodbc.tcl
-lib:lib/tdbcpostgres1.1.1/libtdbcpostgres1.1.1.so
-rsc:lib/tdbcpostgres1.1.1/pkgIndex.tcl
-rsc:lib/tdbcpostgres1.1.1/tdbcpostgres.tcl
-lib:lib/thread2.8.5/libthread2.8.5.so
-rsc:lib/thread2.8.5/pkgIndex.tcl
-rsc:lib/thread2.8.5/ttrace.tcl
+lib:lib/tdbc1.1.2/libtdbc1.1.2.so
+rsc:lib/tdbc1.1.2/pkgIndex.tcl
+rsc:lib/tdbc1.1.2/tdbc.tcl
+rsc:lib/tdbc1.1.2/tdbcConfig.sh
+lib:lib/tdbcmysql1.1.2/libtdbcmysql1.1.2.so
+rsc:lib/tdbcmysql1.1.2/pkgIndex.tcl
+rsc:lib/tdbcmysql1.1.2/tdbcmysql.tcl
+lib:lib/tdbcodbc1.1.2/libtdbcodbc1.1.2.so
+rsc:lib/tdbcodbc1.1.2/pkgIndex.tcl
+rsc:lib/tdbcodbc1.1.2/tdbcodbc.tcl
+lib:lib/tdbcpostgres1.1.2/libtdbcpostgres1.1.2.so
+rsc:lib/tdbcpostgres1.1.2/pkgIndex.tcl
+rsc:lib/tdbcpostgres1.1.2/tdbcpostgres.tcl
+lib:lib/thread2.8.6/libthread2.8.6.so
+rsc:lib/thread2.8.6/pkgIndex.tcl
+rsc:lib/thread2.8.6/ttrace.tcl
diff --git a/cross/tcl/digests b/cross/tcl/digests
index 0f4dd999949..10563512e21 100644
--- a/cross/tcl/digests
+++ b/cross/tcl/digests
@@ -1,3 +1,3 @@
-tcl8.6.10-src.tar.gz SHA1 0ba1dcc40db79749c322258781879a3c17093295
-tcl8.6.10-src.tar.gz SHA256 5196dbf6638e3df8d5c87b5815c8c2b758496eb6f0e41446596c9a4e638d87ed
-tcl8.6.10-src.tar.gz MD5 97c55573f8520bcab74e21bfd8d0aadc
+tcl8.6.11-src.tar.gz SHA1 8e2ccdafdcaee0274de16a6dfd627b490ecfa196
+tcl8.6.11-src.tar.gz SHA256 8c0486668586672c5693d7d95817cb05a18c5ecca2f40e2836b9578064088258
+tcl8.6.11-src.tar.gz MD5 8a4c004f48984a03a7747e9ba06e4da4
diff --git a/spk/tcl/Makefile b/spk/tcl/Makefile
index 7cdc62f6c99..0913fc83365 100644
--- a/spk/tcl/Makefile
+++ b/spk/tcl/Makefile
@@ -1,7 +1,7 @@
 SPK_NAME = tcl
-SPK_VERS = 8.6.10
+SPK_VERS = 8.6.11
 SPK_MAIN_VERS=$(word 1,$(subst ., ,$(SPK_VERS))).$(word 2,$(subst ., ,$(SPK_VERS)))
-SPK_REV = 5
+SPK_REV = 6
 SPK_ICON = src/tcl.png
 
 DEPENDS = cross/$(SPK_NAME)
@@ -16,11 +16,11 @@ DESCRIPTION = "Tcl \(Tool Command Language\) is a very powerful but easy to lear
 RELOAD_UI = no
 DISPLAY_NAME = Tcl
 STARTABLE = no
-CHANGELOG = "1. 64-bit support for x64 archs added.<br/>2. zlib compression fixed."
+CHANGELOG = "1. Update tcl to 8.6.11 released 2021-04-02.<br/>2. Add 64-bit support for all 64-bit archs."
 
 HOMEPAGE = https://www.tcl.tk
 LICENSE = Tcl/Tk License
 
-SPK_LINKS = /usr/local/bin/tclsh:bin/tclsh$(SPK_MAIN_VERS)
+SPK_COMMANDS = bin/tclsh bin/tclsh$(SPK_MAIN_VERS)
 
 include ../../mk/spksrc.spk.mk