diff --git a/.gitignore b/.gitignore
index 24e91a1..bceceda 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-SOURCES/DateTime-TimeZone-1.63.tar.gz
+SOURCES/DateTime-TimeZone-1.70.tar.gz
+SOURCES/tzdata2017b.tar.gz
diff --git a/.perl-DateTime-TimeZone.metadata b/.perl-DateTime-TimeZone.metadata
index 18714a1..f4dc566 100644
--- a/.perl-DateTime-TimeZone.metadata
+++ b/.perl-DateTime-TimeZone.metadata
@@ -1 +1,2 @@
-1b7e0ae1bce875d11d119cb59062fbad8290bbb3 SOURCES/DateTime-TimeZone-1.63.tar.gz
+0f9b98d777f21e50cd123397a505539e7788342e SOURCES/DateTime-TimeZone-1.70.tar.gz
+0f13bbb641f5742796609d3484006fe01fa654f1 SOURCES/tzdata2017b.tar.gz
diff --git a/SOURCES/DateTime-TimeZone-1.70-Adjust-tests-to-time-zone-data-2017b.patch b/SOURCES/DateTime-TimeZone-1.70-Adjust-tests-to-time-zone-data-2017b.patch
new file mode 100644
index 0000000..dd76cd7
--- /dev/null
+++ b/SOURCES/DateTime-TimeZone-1.70-Adjust-tests-to-time-zone-data-2017b.patch
@@ -0,0 +1,54 @@
+From 4100d95d3af754ac17c8d04c5fb76c726c78c3ee Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
+Date: Mon, 10 Jul 2017 17:47:47 +0200
+Subject: [PATCH] Adjust tests to time zone data 2017b
+
+Africa/Kinshasa renamed to Africa/Lagos in upstream 1.74.
+Third Chille time zone America/Punta_Arenas added in upstream 2.10.
+---
+ t/04local.t   | 6 +++---
+ t/15catalog.t | 6 +++---
+ 2 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/t/04local.t b/t/04local.t
+index 4969f86..53ffabc 100644
+--- a/t/04local.t
++++ b/t/04local.t
+@@ -73,12 +73,12 @@ local $ENV{TZ} = undef;
+ }
+ 
+ {
+-    local $ENV{TZ} = 'Africa/Kinshasa';
++    local $ENV{TZ} = 'Africa/Lagos';
+ 
+     my $tz = DateTime::TimeZone::Local::Unix->FromEnv();
+     is(
+-        $tz->name(), 'Africa/Kinshasa',
+-        'tz object name() is Africa::Kinshasa'
++        $tz->name(), 'Africa/Lagos',
++        'tz object name() is Africa::Lagos'
+     );
+ 
+     local $ENV{TZ} = 0;
+diff --git a/t/15catalog.t b/t/15catalog.t
+index 2246253..0102898 100644
+--- a/t/15catalog.t
++++ b/t/15catalog.t
+@@ -97,11 +97,11 @@ use DateTime::TimeZone;
+ 
+ {
+     my @zones = DateTime::TimeZone->names_in_country('cl');
+-    is( @zones, 2, 'two zones for Chile' );
++    is( @zones, 3, 'two zones for Chile' );
+     is_deeply(
+         [ sort @zones ],
+-        [ 'America/Santiago', 'Pacific/Easter' ],
+-        'zones for Chile are America/Santiago and Pacific/Easter'
++        [ 'America/Punta_Arenas', 'America/Santiago', 'Pacific/Easter' ],
++        'zones for Chile are America/Punta_Arenas, America/Santiago, and Pacific/Easter'
+     );
+ }
+ 
+-- 
+1.8.3.1
+
diff --git a/SOURCES/DateTime-TimeZone-1.70-Inject-DT-TZ-version-when-generating-modules.patch b/SOURCES/DateTime-TimeZone-1.70-Inject-DT-TZ-version-when-generating-modules.patch
new file mode 100644
index 0000000..22becf7
--- /dev/null
+++ b/SOURCES/DateTime-TimeZone-1.70-Inject-DT-TZ-version-when-generating-modules.patch
@@ -0,0 +1,54 @@
+From 5650e9d07940825507e65ae71d30c4579ffea353 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
+Date: Mon, 10 Jul 2017 15:12:17 +0200
+Subject: [PATCH] Inject DT::TZ version when generating modules
+
+This is implemented with new parse_olson --dtdzversion option.
+---
+ tools/parse_olson | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/tools/parse_olson b/tools/parse_olson
+index c948de8..ff9c1f6 100755
+--- a/tools/parse_olson
++++ b/tools/parse_olson
+@@ -32,6 +32,7 @@ GetOptions(
+     'dir:s'     => \$opts{dir},
+     'clean'     => \$opts{clean},
+     'version:s' => \$opts{version},
++    'dttzversion:s' => \$opts{dttzversion},
+     'old'       => \$opts{old},
+     'file:s'    => \$opts{file},
+     'name:s'    => \$opts{name},
+@@ -47,6 +48,8 @@ $opts{help} = 1
+ 
+ $opts{version} ||= 'test';
+ 
++$opts{dttversion} ||= '0';
++
+ if ( $opts{help} ) {
+     print <<'EOF';
+ 
+@@ -65,6 +68,10 @@ It takes the following arguments:
+   --version  The version of the Olson data files being used.
+              Required unless one of the debugging options is given.
+ 
++  --dttzversion
++	     The version of the DateTime-TimeZone distribution to inject into
++             each generated module as its version. Default is 0.
++
+   --clean    Remove old generated modules (which may not be valid with
+              the latest Olson database)
+ 
+@@ -208,7 +215,7 @@ $autogen_warning
+ # Do not edit this file directly.
+ #
+ $pkg_keyword DateTime::TimeZone::$mod_name;
+-
++\$DateTime::TimeZone::${mod_name}::VERSION = '$opts{dttzversion}';
+ use strict;
+ 
+ use Class::Singleton 1.03;
+-- 
+1.8.3.1
+
diff --git a/SOURCES/DateTime-TimeZone-1.70-Recognize-short-zone-names-starting-with-a-sign.patch b/SOURCES/DateTime-TimeZone-1.70-Recognize-short-zone-names-starting-with-a-sign.patch
new file mode 100644
index 0000000..f61b004
--- /dev/null
+++ b/SOURCES/DateTime-TimeZone-1.70-Recognize-short-zone-names-starting-with-a-sign.patch
@@ -0,0 +1,41 @@
+From cbca7770b9ead257b43f073b09abea3bd400ac0e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
+Date: Tue, 11 Jul 2017 14:09:46 +0200
+Subject: [PATCH] Recognize short zone names starting with a sign
+
+Since tzdata 2017a, Africa/Accra uses GMT/+0020 short names and the conversion
+script from DateTime-TimeZones-1.96 adds support for this syntax.
+---
+ lib/DateTime/TimeZone/OlsonDB/Change.pm | 2 +-
+ tools/tests_from_zdump                  | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/lib/DateTime/TimeZone/OlsonDB/Change.pm b/lib/DateTime/TimeZone/OlsonDB/Change.pm
+index 5bebbfa..b312f97 100644
+--- a/lib/DateTime/TimeZone/OlsonDB/Change.pm
++++ b/lib/DateTime/TimeZone/OlsonDB/Change.pm
+@@ -43,7 +43,7 @@ sub new {
+     $p{is_dst} = 1 if $p{rule} && $p{rule}->offset_from_std;
+     $p{is_dst} = 1 if $p{observance}->offset_from_std;
+ 
+-    if ( $p{short_name} =~ m{(\w+)/(\w+)} ) {
++    if ( $p{short_name} =~ m{([\-\+\w]+)/([\-\+\w]+)} ) {
+         $p{short_name} = $p{is_dst} ? $2 : $1;
+     }
+ 
+diff --git a/tools/tests_from_zdump b/tools/tests_from_zdump
+index b013b7c..03465ee 100755
+--- a/tools/tests_from_zdump
++++ b/tools/tests_from_zdump
+@@ -147,7 +147,7 @@ sub make_test_file {
+                             \s+
+                             (\d\d\d\d)    # local year
+                             \s+
+-                            (\w+)         # local short name
++                            ([\-\+\w]+)   # local short name
+                             \s+
+                             isdst=(1|0)
+                             \s+
+-- 
+1.8.3.1
+
diff --git a/SOURCES/DateTime-TimeZone-1.70-Use-List-Util-max-directly-instead-of-List-AllUtils-.patch b/SOURCES/DateTime-TimeZone-1.70-Use-List-Util-max-directly-instead-of-List-AllUtils-.patch
new file mode 100644
index 0000000..ded59ea
--- /dev/null
+++ b/SOURCES/DateTime-TimeZone-1.70-Use-List-Util-max-directly-instead-of-List-AllUtils-.patch
@@ -0,0 +1,25 @@
+From 539066aad4edeb1cacc0ec9e0cc52caa8311a84c Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
+Date: Mon, 10 Jul 2017 14:32:38 +0200
+Subject: [PATCH] Use List::Util::max directly instead of List::AllUtils::max
+
+---
+ tools/parse_olson | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/tools/parse_olson b/tools/parse_olson
+index f9597ed..c948de8 100755
+--- a/tools/parse_olson
++++ b/tools/parse_olson
+@@ -16,7 +16,7 @@ use File::Find::Rule;
+ use File::Path;
+ use File::Spec;
+ use Getopt::Long;
+-use List::AllUtils qw( max );
++use List::Util qw( max );
+ use Locale::Country 3.11 qw( code2country );
+ 
+ $Data::Dumper::Indent   = 1;
+-- 
+1.8.3.1
+
diff --git a/SPECS/perl-DateTime-TimeZone.spec b/SPECS/perl-DateTime-TimeZone.spec
index 9e1b472..e9475f7 100644
--- a/SPECS/perl-DateTime-TimeZone.spec
+++ b/SPECS/perl-DateTime-TimeZone.spec
@@ -1,52 +1,56 @@
+# Regenerate Perl library code from upstream Olson database of this date
+%global tzversion 2017b
+
 Name:           perl-DateTime-TimeZone
-Version:        1.63
-Release:        2%{?dist}
+Version:        1.70
+Release:        1%{?dist}
 Summary:        Time zone object base class and factory
-License:        GPL+ or Artistic
+# tzdata%%{tzversion}.tar.gz archive:   Public Domain
+# other files:                          GPL+ or Artistic
+License:        (GPL+ or Artistic) and Public Domain
 Group:          Development/Libraries
 URL:            http://search.cpan.org/dist/DateTime-TimeZone/
-Source0:        http://www.cpan.org/authors/id/D/DR/DROLSKY/DateTime-TimeZone-%{version}.tar.gz
+Source0:        http://backpan.perl.org/authors/id/D/DR/DROLSKY/DateTime-TimeZone-%{version}.tar.gz
+%if %{defined tzversion}
+Source1:        ftp://ftp.iana.org/tz/releases/tzdata%{tzversion}.tar.gz
+%endif
+# Do not use List::AllUtils in parse_olson tool, bug #1101251
+Patch0:         DateTime-TimeZone-1.70-Use-List-Util-max-directly-instead-of-List-AllUtils-.patch
+# Preserve DateTime-TimeZone version in regenerated modules, bug #1101251
+Patch1:         DateTime-TimeZone-1.70-Inject-DT-TZ-version-when-generating-modules.patch
+# Adjust tests to 2017b, bug #1101251, in upstream 2.10
+Patch2:         DateTime-TimeZone-1.70-Adjust-tests-to-time-zone-data-2017b.patch
+# Adjust conversion script to 2017b, bug #1101251, in upstream 1.96
+Patch3:         DateTime-TimeZone-1.70-Recognize-short-zone-names-starting-with-a-sign.patch
 BuildArch:      noarch
+BuildRequires:  findutils
+BuildRequires:  make
 BuildRequires:  perl
-BuildRequires:  perl(base)
+BuildRequires:  perl(ExtUtils::MakeMaker) >= 6.30
+BuildRequires:  perl(strict)
+BuildRequires:  perl(warnings)
+%if !%{defined perl_bootstrap} && %{defined tzversion}
+# avoid circular dependencies - DateTime strictly requires DateTime::TimeZone
+BuildRequires:  perl(Data::Dumper)
+BuildRequires:  perl(DateTime)
+BuildRequires:  perl(File::Copy)
+BuildRequires:  perl(File::Find::Rule)
+BuildRequires:  perl(File::Path)
+BuildRequires:  perl(File::Spec)
+BuildRequires:  perl(Getopt::Long)
+BuildRequires:  perl(integer)
 BuildRequires:  perl(lib)
+BuildRequires:  perl(List::Util)
+BuildRequires:  perl(Locale::Country) >= 3.11
+%endif
+# Run-time:
 BuildRequires:  perl(Class::Load)
 BuildRequires:  perl(Class::Singleton) >= 1.03
 BuildRequires:  perl(constant)
 BuildRequires:  perl(Cwd) >= 3
-BuildRequires:  perl(ExtUtils::MakeMaker)
-BuildRequires:  perl(File::Basename)
-BuildRequires:  perl(File::Compare)
-BuildRequires:  perl(File::Copy)
-BuildRequires:  perl(File::Spec)
-BuildRequires:  perl(List::Util)
-BuildRequires:  perl(overload)
-BuildRequires:  perl(Params::Validate) >= 0.72
-BuildRequires:  perl(parent)
-BuildRequires:  perl(Test::More) >= 0.88
-BuildRequires:  perl(Test::Output)
-BuildRequires:  perl(Storable)
-BuildRequires:  perl(strict)
-BuildRequires:  perl(Sys::Hostname)
-BuildRequires:  perl(vars)
-BuildRequires:  perl(warnings)
-# not automatically detected
-Requires:       perl(File::Compare)
-Requires:       perl(:MODULE_COMPAT_%(eval "`%{__perl} -V:version`"; echo $version))
-
-%{?filter_setup:
-%filter_from_requires /^perl(Win32/d
-%if 0%{?perl_bootstrap}
-%filter_from_requires /^perl(DateTime\(::Duration\)?)/d
-%endif
-%?perl_default_filter}
-
-%global __requires_exclude %{__requires_exclude}|perl\\(Params::Validate\\)$|perl\\(Class::Singleton\\)$
-
 %if 0%{?perl_bootstrap}
 # avoid circular dependencies - DateTime strictly requires DateTime::TimeZone
-%global __requires_exclude %{?__requires_exclude:%__requires_exclude|}perl\\(DateTime\\)
-%global __requires_exclude %{__requires_exclude}|perl\\(DateTime::Duration\\)
+%global __requires_exclude %{?__requires_exclude:%__requires_exclude|}^perl\\((DateTime|DateTime::Duration)\\)
 # perl-DateTime-TimeZone used to be bundled with perl-DateTime
 # when bootstrapping, we can't require the unbundled version, so
 # need to conflict with the old package
@@ -58,6 +62,39 @@ Requires:       perl-DateTime >= 2:0.70-1
 BuildRequires:  perl(DateTime)
 BuildRequires:  perl(DateTime::Duration)
 %endif
+BuildRequires:  perl(File::Basename)
+BuildRequires:  perl(File::Compare)
+BuildRequires:  perl(File::Find)
+BuildRequires:  perl(File::Spec)
+BuildRequires:  perl(List::Util)
+BuildRequires:  perl(Params::Validate) >= 0.72
+BuildRequires:  perl(parent)
+BuildRequires:  perl(vars)
+# Win32::TieRegistry not used
+# Tests:
+BuildRequires:  perl(base)
+BuildRequires:  perl(File::Copy)
+BuildRequires:  perl(File::Path)
+BuildRequires:  perl(File::Spec::Functions)
+BuildRequires:  perl(File::Temp)
+BuildRequires:  perl(lib)
+BuildRequires:  perl(overload)
+BuildRequires:  perl(Storable)
+BuildRequires:  perl(Sys::Hostname)
+BuildRequires:  perl(Test::Fatal)
+BuildRequires:  perl(Test::More) >= 0.88
+BuildRequires:  perl(Test::Output)
+BuildRequires:  perl(Test::Requires)
+BuildRequires:  perl(Test::Taint)
+# not automatically detected
+Requires:       perl(File::Compare)
+Requires:       perl(:MODULE_COMPAT_%(eval "`%{__perl} -V:version`"; echo $version))
+
+# Remove non-Linux unused dependencies
+%global __requires_exclude %{?__requires_exclude:%{__requires_exclude}|}^perl\\(Win32
+
+# Remove under-specified dependencies
+%global __requires_exclude %{?__requires_exclude:%{__requires_exclude}|}^perl\\((Params::Validate|Class::Singleton)\\)$
 
 %description
 This class is the base class for all time zone objects. A time zone is
@@ -65,17 +102,26 @@ represented internally as a set of observances, each of which describes the
 offset from GMT for a given time period.
 
 %prep
-%setup -q -n DateTime-TimeZone-%{version}
+%if !%{defined perl_bootstrap} && %{defined tzversion}
+%setup -q -T -a 1 -c -n tzdata-%{tzversion}
+%endif
+%setup -q -T -b 0 -n DateTime-TimeZone-%{version}
+%patch0 -p1
+%patch1 -p1
+%patch2 -p1
+%patch3 -p1
 
 %build
+%if !%{defined perl_bootstrap} && %{defined tzversion}
+perl tools/parse_olson --dir ../tzdata-%{tzversion} --version %{tzversion} \
+    --dttzversion %{version} --clean
+%endif
 %{__perl} Makefile.PL INSTALLDIRS=vendor
 make %{?_smp_mflags}
 
 %install
 make pure_install DESTDIR=%{buildroot}
-
-find %{buildroot} -type f -name .packlist -exec rm -f {} \;
-
+find %{buildroot} -type f -name .packlist -delete
 %{_fixperms} %{buildroot}/*
 
 %check
@@ -87,6 +133,14 @@ make test
 %{_mandir}/man3/*
 
 %changelog
+* Mon Jul 10 2017 Petr Pisar <ppisar@redhat.com> - 1.70-1
+- 1.70 bump (bug #1101251)
+- Regenerate Perl code from timezone sources (bug #1101251)
+- Update time zone data to Olson 2017b (bug #1101251)
+
+* Thu Oct 06 2016 Petr Pisar <ppisar@redhat.com> - 1.64-1
+- 1.64 bump (bug #1241818)
+
 * Fri Dec 27 2013 Daniel Mach <dmach@redhat.com> - 1.63-2
 - Mass rebuild 2013-12-27