diff --git a/config/rootfiles/common/squid b/config/rootfiles/common/squid
index 2a407ed44..0cfe2ace9 100644
--- a/config/rootfiles/common/squid
+++ b/config/rootfiles/common/squid
@@ -521,15 +521,60 @@ usr/lib/squid/errors/en/error-details.txt
 #usr/lib/squid/errors/es
 #usr/lib/squid/errors/es-ar
 #usr/lib/squid/errors/es-bo
+#usr/lib/squid/errors/es-bz
 #usr/lib/squid/errors/es-cl
 #usr/lib/squid/errors/es-co
 #usr/lib/squid/errors/es-cr
+#usr/lib/squid/errors/es-cu
 #usr/lib/squid/errors/es-do
 #usr/lib/squid/errors/es-ec
 #usr/lib/squid/errors/es-es
 #usr/lib/squid/errors/es-gt
 #usr/lib/squid/errors/es-hn
 #usr/lib/squid/errors/es-mx
+#usr/lib/squid/errors/es-mx/ERR_ACCESS_DENIED
+#usr/lib/squid/errors/es-mx/ERR_ACL_TIME_QUOTA_EXCEEDED
+#usr/lib/squid/errors/es-mx/ERR_AGENT_CONFIGURE
+#usr/lib/squid/errors/es-mx/ERR_AGENT_WPAD
+#usr/lib/squid/errors/es-mx/ERR_CACHE_ACCESS_DENIED
+#usr/lib/squid/errors/es-mx/ERR_CACHE_MGR_ACCESS_DENIED
+#usr/lib/squid/errors/es-mx/ERR_CANNOT_FORWARD
+#usr/lib/squid/errors/es-mx/ERR_CONFLICT_HOST
+#usr/lib/squid/errors/es-mx/ERR_CONNECT_FAIL
+#usr/lib/squid/errors/es-mx/ERR_DIR_LISTING
+#usr/lib/squid/errors/es-mx/ERR_DNS_FAIL
+#usr/lib/squid/errors/es-mx/ERR_ESI
+#usr/lib/squid/errors/es-mx/ERR_FORWARDING_DENIED
+#usr/lib/squid/errors/es-mx/ERR_FTP_DISABLED
+#usr/lib/squid/errors/es-mx/ERR_FTP_FAILURE
+#usr/lib/squid/errors/es-mx/ERR_FTP_FORBIDDEN
+#usr/lib/squid/errors/es-mx/ERR_FTP_NOT_FOUND
+#usr/lib/squid/errors/es-mx/ERR_FTP_PUT_CREATED
+#usr/lib/squid/errors/es-mx/ERR_FTP_PUT_ERROR
+#usr/lib/squid/errors/es-mx/ERR_FTP_PUT_MODIFIED
+#usr/lib/squid/errors/es-mx/ERR_FTP_UNAVAILABLE
+#usr/lib/squid/errors/es-mx/ERR_GATEWAY_FAILURE
+#usr/lib/squid/errors/es-mx/ERR_ICAP_FAILURE
+#usr/lib/squid/errors/es-mx/ERR_INVALID_REQ
+#usr/lib/squid/errors/es-mx/ERR_INVALID_RESP
+#usr/lib/squid/errors/es-mx/ERR_INVALID_URL
+#usr/lib/squid/errors/es-mx/ERR_LIFETIME_EXP
+#usr/lib/squid/errors/es-mx/ERR_NO_RELAY
+#usr/lib/squid/errors/es-mx/ERR_ONLY_IF_CACHED_MISS
+#usr/lib/squid/errors/es-mx/ERR_PRECONDITION_FAILED
+#usr/lib/squid/errors/es-mx/ERR_PROTOCOL_UNKNOWN
+#usr/lib/squid/errors/es-mx/ERR_READ_ERROR
+#usr/lib/squid/errors/es-mx/ERR_READ_TIMEOUT
+#usr/lib/squid/errors/es-mx/ERR_SECURE_CONNECT_FAIL
+#usr/lib/squid/errors/es-mx/ERR_SHUTTING_DOWN
+#usr/lib/squid/errors/es-mx/ERR_SOCKET_FAILURE
+#usr/lib/squid/errors/es-mx/ERR_TOO_BIG
+#usr/lib/squid/errors/es-mx/ERR_UNSUP_HTTPVERSION
+#usr/lib/squid/errors/es-mx/ERR_UNSUP_REQ
+#usr/lib/squid/errors/es-mx/ERR_URN_RESOLVE
+#usr/lib/squid/errors/es-mx/ERR_WRITE_ERROR
+#usr/lib/squid/errors/es-mx/ERR_ZERO_SIZE_OBJECT
+#usr/lib/squid/errors/es-mx/error-details.txt
 #usr/lib/squid/errors/es-ni
 #usr/lib/squid/errors/es-pa
 #usr/lib/squid/errors/es-pe
@@ -1673,6 +1718,7 @@ usr/lib/squid/errors/ru/error-details.txt
 #usr/lib/squid/errors/sl/ERR_WRITE_ERROR
 #usr/lib/squid/errors/sl/ERR_ZERO_SIZE_OBJECT
 #usr/lib/squid/errors/sl/error-details.txt
+#usr/lib/squid/errors/spq
 #usr/lib/squid/errors/sr
 #usr/lib/squid/errors/sr-cyrl
 #usr/lib/squid/errors/sr-cyrl-cs
@@ -2185,10 +2231,10 @@ usr/lib/squid/errors/tr/error-details.txt
 usr/lib/squid/ext_delayer_acl
 usr/lib/squid/ext_edirectory_userip_acl
 usr/lib/squid/ext_file_userip_acl
+#usr/lib/squid/ext_kerberos_sid_group_acl
 usr/lib/squid/ext_ldap_group_acl
 usr/lib/squid/ext_session_acl
 usr/lib/squid/ext_sql_session_acl
-usr/lib/squid/ext_time_quota_acl
 usr/lib/squid/ext_unix_group_acl
 usr/lib/squid/ext_wbinfo_group_acl
 usr/lib/squid/helper-mux
@@ -2273,10 +2319,10 @@ usr/sbin/updxlrator
 #usr/share/man/man8/ext_delayer_acl.8
 #usr/share/man/man8/ext_edirectory_userip_acl.8
 #usr/share/man/man8/ext_file_userip_acl.8
+#usr/share/man/man8/ext_kerberos_sid_group_acl.8
 #usr/share/man/man8/ext_ldap_group_acl.8
 #usr/share/man/man8/ext_session_acl.8
 #usr/share/man/man8/ext_sql_session_acl.8
-#usr/share/man/man8/ext_time_quota_acl.8
 #usr/share/man/man8/ext_unix_group_acl.8
 #usr/share/man/man8/ext_wbinfo_group_acl.8
 #usr/share/man/man8/helper-mux.8
diff --git a/lfs/squid b/lfs/squid
index 98034651c..c56dca7de 100644
--- a/lfs/squid
+++ b/lfs/squid
@@ -24,7 +24,7 @@
 
 include Config
 
-VER        = 4.15
+VER        = 5.1
 
 THISAPP    = squid-$(VER)
 DL_FILE    = $(THISAPP).tar.xz
@@ -46,7 +46,7 @@ objects = $(DL_FILE)
 
 $(DL_FILE) = $(DL_FROM)/$(DL_FILE)
 
-$(DL_FILE)_MD5 = a593de9dc888dfeca4f1f7db2cd7d3b9
+$(DL_FILE)_MD5 = 17be9709b54fe0146452113404be7b54
 
 install : $(TARGET)
 
@@ -127,7 +127,6 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 		--enable-icap-client \
 		--enable-zph-qos \
 		--with-dl \
-		--with-filedescriptors=$$(( 16384 * 64 )) \
 		--with-large-files \
 		--without-gnutls \
 		--without-netfilter-conntrack