Shape Of You seems to be nailed to the top. It is the 13th week there and so matches the result of Lady Gaga's Poker Face in spring 2007, although the lady made it in two runs separated by a three weeks break. The last song occupying the top for 13 consecutive weeks was Dragostae Din Tei by O-Zone in summer 2004. That song had a 14 weeks run at the top–a stat to eclipse in next weeks time.
If one is keen on records this might be interesting: Ed Sheeran now matches the result of Tom Jones who was listed at #1 for 13 weeks with Delilah. Exactly it ruled the chart issues from 1st of May to July 15th 1968 (counting till July 31st 1968). So far Tom Jones served as the British solo male with the longest #1 ride.
Still and steadily rising Jax Jones reaches #3 this week with You Don't Know Me. The track is noted for an eighth week.
At the lower end of the top 20 two songs entering. First one Symphony by Clean Bandit the succeeder of #1 hit Rockabye. Featured singer is Zara Larsson. Both with Symphony have a fifth top 20 hit–Clean bandit only if one count their unnamed appearance on Do They Know It's Christmas in December 2014.
At #18 US American rapper Future reaches the top 20 for the very first time. Mask Off goes up five places in its fifth chart week.
Highest new entry starts chart life at #30. It is the first song off anounced album Ich bin 3 Berliner by Berlin rapper Ufo361. Für die Gang might be the first sign of an upcoming invasion of this song chart's newcomer.
Roots by singer songwriter Alice Merton seems to be a sleeper hit. In its ninth chart week the song reaches the upper half of the list for the very first time. It rests so far at #43.
The real gainers are:
That's What I Like by Bruno Mars going up 33 places to #51 in its second chart week
Ciao Adios by Anne-Marie going 25 places to #46 in its third chart week
To forecast a real hit one should look at #84. There Menschen Tanzen Leben Welt by Jim Pandzko Feat Jan Böhmermann (both names are for one person) lands after a few hours of availability online. The song is a parody on German singer songwriter hits of the past months as released by Tim Bendzko or Max Giesinger. It is a given thing that Menschen Leben Tanzen Welt will have a place inside the top 10 in next weeks time.