diff --git a/ChangeLog b/ChangeLog
index a487be67df..8d3961dca9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+1957.	[build]		razvan
+	Library version numbers bumped for Kea 2.1.0 development
+	version.
+	(Gitlab #2141)
+
 1956.	[bug]		tmark
 	Modified stat_cmds hook library to omit statisics
 	for non-existent subnets from results returned by
diff --git a/src/lib/asiodns/Makefile.am b/src/lib/asiodns/Makefile.am
index 658c093e7a..9d9aa00c4a 100644
--- a/src/lib/asiodns/Makefile.am
+++ b/src/lib/asiodns/Makefile.am
@@ -9,7 +9,7 @@ CLEANFILES = *.gcno *.gcda
 
 lib_LTLIBRARIES = libkea-asiodns.la
 
-libkea_asiodns_la_LDFLAGS = -no-undefined -version-info 13:0:0
+libkea_asiodns_la_LDFLAGS = -no-undefined -version-info 24:0:0
 
 libkea_asiodns_la_SOURCES = io_fetch.cc io_fetch.h
 libkea_asiodns_la_SOURCES += logger.h logger.cc
diff --git a/src/lib/d2srv/Makefile.am b/src/lib/d2srv/Makefile.am
index 6ece84cbc7..357c49c909 100644
--- a/src/lib/d2srv/Makefile.am
+++ b/src/lib/d2srv/Makefile.am
@@ -47,7 +47,7 @@ libkea_d2srv_la_LIBADD += $(top_builddir)/src/lib/util/libkea-util.la
 libkea_d2srv_la_LIBADD += $(top_builddir)/src/lib/exceptions/libkea-exceptions.la
 libkea_d2srv_la_LIBADD += $(LOG4CPLUS_LIBS) $(CRYPTO_LIBS) $(BOOST_LIBS)
 
-libkea_d2srv_la_LDFLAGS  = -no-undefined -version-info 3:0:0
+libkea_d2srv_la_LDFLAGS  = -no-undefined -version-info 14:0:0
 libkea_d2srv_la_LDFLAGS += $(AM_LDFLAGS) $(CRYPTO_LDFLAGS)
 
 # If we want to get rid of all generated messages files, we need to use
diff --git a/src/lib/dhcp_ddns/Makefile.am b/src/lib/dhcp_ddns/Makefile.am
index 19c1d00e96..4a68741f4e 100644
--- a/src/lib/dhcp_ddns/Makefile.am
+++ b/src/lib/dhcp_ddns/Makefile.am
@@ -21,7 +21,7 @@ libkea_dhcp_ddns_la_CXXFLAGS = $(AM_CXXFLAGS)
 libkea_dhcp_ddns_la_CPPFLAGS = $(AM_CPPFLAGS)
 libkea_dhcp_ddns_la_LDFLAGS  = $(AM_LDFLAGS)
 libkea_dhcp_ddns_la_LDFLAGS += $(CRYPTO_LDFLAGS)
-libkea_dhcp_ddns_la_LDFLAGS += -no-undefined -version-info 17:0:0
+libkea_dhcp_ddns_la_LDFLAGS += -no-undefined -version-info 28:0:0
 
 libkea_dhcp_ddns_la_LIBADD  =
 libkea_dhcp_ddns_la_LIBADD += $(top_builddir)/src/lib/stats/libkea-stats.la
diff --git a/src/lib/dhcpsrv/Makefile.am b/src/lib/dhcpsrv/Makefile.am
index 69c51e25b4..7ecf8b9dfa 100644
--- a/src/lib/dhcpsrv/Makefile.am
+++ b/src/lib/dhcpsrv/Makefile.am
@@ -226,7 +226,7 @@ libkea_dhcpsrv_la_LIBADD  += $(top_builddir)/src/lib/util/libkea-util.la
 libkea_dhcpsrv_la_LIBADD  += $(top_builddir)/src/lib/exceptions/libkea-exceptions.la
 libkea_dhcpsrv_la_LIBADD  += $(LOG4CPLUS_LIBS) $(CRYPTO_LIBS) $(BOOST_LIBS)
 
-libkea_dhcpsrv_la_LDFLAGS  = -no-undefined -version-info 50:0:0
+libkea_dhcpsrv_la_LDFLAGS  = -no-undefined -version-info 61:0:0
 libkea_dhcpsrv_la_LDFLAGS += $(CRYPTO_LDFLAGS)
 if HAVE_MYSQL
 libkea_dhcpsrv_la_LDFLAGS += $(MYSQL_LIBS)
diff --git a/src/lib/hooks/Makefile.am b/src/lib/hooks/Makefile.am
index 99b94a11fa..74e1f3d234 100644
--- a/src/lib/hooks/Makefile.am
+++ b/src/lib/hooks/Makefile.am
@@ -38,7 +38,7 @@ libkea_hooks_la_SOURCES += hooks_messages.cc hooks_messages.h
 
 libkea_hooks_la_CXXFLAGS = $(AM_CXXFLAGS)
 libkea_hooks_la_CPPFLAGS = $(AM_CPPFLAGS)
-libkea_hooks_la_LDFLAGS  = $(AM_LDFLAGS) -no-undefined -version-info 38:0:0
+libkea_hooks_la_LDFLAGS  = $(AM_LDFLAGS) -no-undefined -version-info 49:0:0
 libkea_hooks_la_LIBADD  =
 libkea_hooks_la_LIBADD += $(top_builddir)/src/lib/cc/libkea-cc.la
 libkea_hooks_la_LIBADD += $(top_builddir)/src/lib/asiolink/libkea-asiolink.la
diff --git a/src/lib/hooks/hooks.h b/src/lib/hooks/hooks.h
index 375b8d3f02..b8ab1621dd 100644
--- a/src/lib/hooks/hooks.h
+++ b/src/lib/hooks/hooks.h
@@ -12,8 +12,8 @@
 
 namespace {
 
-// Version 20000 of the hooks framework, set for Kea 2.0.0
-const int KEA_HOOKS_VERSION = 20000;
+// Version 20100 of the hooks framework, set for Kea 2.1.0
+const int KEA_HOOKS_VERSION = 20100;
 
 // Names of the framework functions.
 const char* const LOAD_FUNCTION_NAME = "load";