Update to 2.66. From the changelog:

2.66 2021-02-21
- from_graph not drop isolated vertices - thanks @jhannah-mm for report

2.65 2021-01-09
- undirected edges don't get doubled in from_graph, changes dot_input

2.64 2021-01-01
- fix multigraph-handling

2.63 2021-01-01
- from_graph to handle multigraphs

2.62 2020-11-16
- fix label quoting

2.61 2020-11-08
- support Perl 5.8.8

2.60 2020-11-04
- fix GraphViz2->from_graph object method
- Parse::STT add visualise modes: REs become nodes or ports for clearer
  transitions
- more robust quoting for record ports
- add handling array-ref for record ports

2.59 2020-10-31
- GraphViz2->from_graph, dep on Graph, use as intermediate in Parse::Regexp
- convert Parse::Yacc, Parse::Yapp, Parse::STT to graph-based

2.58 2020-10-19
- add combine_node_and_port global option
- add_node(label => [{port=>...}]) no need <>

2.57 2020-10-15
- drop unnecessary use of "open" and "charnames"
- setting defaults for subgraphs no longer affects outside those
- now let DOT figure out inheritance rather than respecifying everything
  in subgraphs
- fixed docs on controlling subgraph attributes

2.56 2020-10-13
- fix problem when "which" returns empty list not scalar - thanks
  @eserte for report

2.55 2020-10-13
- fix bugs in webgen scripts
- make dot_input be lazy-built
- zap undoc-ed dependency method that actually belongs in ::Parse::ISA

2.54 2020-10-09
- zap report_valid_attributes method
- drop Log::Handler, any object that can "debug" or "error" works

2.53 2020-10-09
- drop Try::Tiny

2.52 2020-10-09
- zap obsolete special case in a test/webgen for Darwin - fix #7. Thanks
  @dbevans for report!

2.51 2020-10-08
- DOT input now prettier
- tests rearranged so can run in parallel, ergo quicker
- tests now rigorously capture DOT input in each scenario
- generating web content updated, output removed from distro so smaller
- drop Set::Array

2.50 2020-10-02
- dropped 3 more unnecessary deps, metadata tweak

2.49 2020-09-27
- split out into own distro: GraphViz2::DBI, GraphViz2::Parse::XML,
  GraphViz2::Parse::ISA, GraphViz2::Data::Grapher,
  GraphViz2::Parse::RecDescent

graphics/p5-GraphViz2/Makefile

@@ -1,8 +1,7 @@
-# $NetBSD: Makefile,v 1.18 2021/05/24 19:52:25 wiz Exp $
+# $NetBSD: Makefile,v 1.19 2021/10/31 08:49:41 schmonz Exp $
 
-DISTNAME=	GraphViz2-2.48
+DISTNAME=	GraphViz2-2.66
 PKGNAME=	p5-${DISTNAME}
-PKGREVISION=	1
 CATEGORIES=	graphics
 MASTER_SITES=	${MASTER_SITE_PERL_CPAN:=GraphViz2/}
 

graphics/p5-GraphViz2/distinfo

@@ -1,5 +1,5 @@
-$NetBSD: distinfo,v 1.7 2021/10/26 10:46:37 nia Exp $
+$NetBSD: distinfo,v 1.8 2021/10/31 08:49:41 schmonz Exp $
 
-BLAKE2s (GraphViz2-2.48.tar.gz) = 184a4afbe7722d566d517b364c803b7113aa2c2de65c8124461a99a3f7aac957
-SHA512 (GraphViz2-2.48.tar.gz) = b4ccee0062bc8645ae7926b7d7bda2d5605655a44c428ff1c5ddfaa2c70a62c6e86381e315c31b597d0606d2101c7ac97b9a07367a2b3040feff37fb0b5bd414
-Size (GraphViz2-2.48.tar.gz) = 230826 bytes
+BLAKE2s (GraphViz2-2.66.tar.gz) = d804b9ff2cc74b8ebfeaf52b86644c399f49884e9ec47003e931b35f8162a384
+SHA512 (GraphViz2-2.66.tar.gz) = 3b6f5a2ce6a78c0fb8a8ca68dbbce8b2adbf357dd322072fa7759f2a05cf92015dce0c38debc55c4d67fda61a65e4b5d285adc522134de1cbf24db20475fff8c
+Size (GraphViz2-2.66.tar.gz) = 78648 bytes